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Published on Leave a comment on Health Benefits From the Flavanols in Chocolate

Image result for dark chocolate So far all the studies I've seen in the past 2 years about cocoa and chocolate have found various beneficial health effects from regularly eating small amounts of cocoa and chocolate. Now 2 new studies found benefits from the flavanols found in cocoa beans and chocolate. The studies found that consuming cocoa flavanols lowers blood pressure, increases flow-mediated vasodilation,improves blood cholesterol profile, and that regular dietary intake may reduce the risk of cardiovascular disease (CVD). However, note that chocolate and cocoa contain other compounds besides flavanols and these may also be exerting positive effects.

So now the question becomes, which chocolates have high levels of flavanols? Modern processing removes some of the flavanols - in fact, the more it undergoes processing, the more flavanols are lost. But it appears that dark chocolate and cocoa that has not undergone Dutch processing is best. According to a Medscape article on cocoa flavanols: "Traditional processing methods that yield "modern chocolate," especially alkalinization (dutching or Dutch processing, to mellow flavor), strips flavanols from cocoa. The bitterness from cacao mostly comes from flavanols. With the emerging recognition of the beneficial effects of flavanols there has been a shift in commercial production towards chocolate forms with high flavanol content." A recent study by Consumer Lab, which compared flavanol levels across many cocoa and chocolate products, also found that some chocolate brands were contaminated with cadmium (a toxic heavy metal), but that cocoa nibs had significantly lower levels. At any rate, the medical evidence does not support gorging on chocolate, but instead consuming chocolate or cocoa in moderation. From Science Daily:

Cocoa flavanols lower blood pressure and increase blood vessel function in healthy people

Two recently published studies in the journals Age and the British Journal of Nutrition (BJN) demonstrate that consuming cocoa flavanols improves cardiovascular function and lessens the burden on the heart that comes with the aging and stiffening of arteries. The studies also provide novel data to indicate that intake of cocoa flavanols reduces the risk of developing cardiovascular disease (CVD).

As we age, our blood vessels become less flexible and less able to expand to let blood flow and circulate normally, and the risk of hypertension also increases. Arterial stiffness and blood vessel dysfunction are linked with cardiovascular disease -- the number one cause of deaths worldwide....Cocoa flavanols are plant-derived bioactives from the cacao bean. Dietary intake of flavanols has been shown to have a beneficial effect on cardiovascular health but the compounds are often destroyed during normal food processing. Earlier studies have demonstrated that cocoa flavanol intake improves the elasticity of blood vessels and lowers blood pressure....These two studies in Age and BJN are the first to look at the different effects dietary cocoa flavanols can have on the blood vessels of healthy, low-risk individuals with no signs or symptoms of cardiovascular disease.

Cocoa flavanols increase blood vessel flexibility and lower blood pressure - In the study published in Age, two groups of 22 young (<35 years of age) and 20 older (50-80 years of age) healthy men consumed either a flavanol-containing drink, or a flavanol-free control drink, twice a day for two weeks. The researchers then measured the effect of flavanols on hallmarks of cardiovascular aging, such as arterial stiffness (as measured by pulse wave velocity), blood pressure and flow-mediated vasodilation (the extent to which blood vessels dilate in response to nitric oxide). They found that vasodilation was significantly improved in both age groups that consumed flavanols over the course of the study (by 33% in the younger age group and 32% in the older age group over the control intervention). In the older age group, a statistically and clinically significant decrease in systolic blood pressure of 4 mm Hg over control was also seen.

Improving cardiovascular health and lowering the risk of CVD - In the second study, published in BJN, the researchers extended their investigations to a larger group (100) of healthy middle-aged men and women (35-60 years) with low risk of CVD. The participants were randomly and blindly assigned into groups that consumed either a flavanol-containing drink or a flavanol-free control drink, twice a day for four weeks.

"We found that intake of flavanols significantly improves several of the hallmarks of cardiovascular health," says Professor Kelm. In particular, the researchers found that consuming flavanols for four weeks significantly increased flow-mediated vasodilation by 21%. Increased flow-mediated vasodilation is a sign of improved endothelial function and has been shown by some studies to be associated with decreased risk of developing CVD. In addition, taking flavanols decreased blood pressure (systolic by 4.4 mmHg, diastolic by 3.9 mmHg), and improved the blood cholesterol profile by decreasing total cholesterol (by 0.2 mmol/L), decreasing LDL cholesterol (by 0.17 mmol/L), and increasing HDL cholesterol (by 0.1 mmol/L).

The researchers also calculated the Framingham Risk Score -- a widely used model to estimate the 10-year cardiovascular risk of an individual -- and found that flavanol intake reduced the risk of CVD. "Our results indicate that dietary flavanol intake reduces the 10-year risk of being diagnosed with CVD by 22% and the 10-year risk of suffering a heart attack by 31%," says Professor Kelm.

The combined results of these studies demonstrate that flavanols are effective at mitigating age-related changes in blood vessels, and could thereby reduce the risk of CVD in healthy individuals. The application of 10-year Framingham Risk Scores should be interpreted with caution as the duration of the BJN study was weeks not years and the number of participants was around 100, not reaching the scale of the Framingham studies. That being said, Professor Kelm comments that "the reduction seen in risk scores suggests that flavanols may have primary preventive potential for CVD."

Published on Leave a comment on How Many Healthy Years Do You Have Left?

The following article posted average life expectancies for both men and women in countries throughout the world. But what was interesting is that it also gave the average years that a person would be healthy and also unhealthy (which is typically the last years of life). And no matter which country one looks at and the average life expectancy of men and women, it turns out that on average people spend about one eighth of their life in a disabled or unhealthy state. Or between 10 to 20% of their life disabled or unhealthy.

So looking at the United States, it is expected that the average women will live 81 years, but about 13 of those years will be in poor health. Men in the USA will live on average 76 years, but of that about 11 years will be unhealthy. Which means, don't wait until retirement to travel and do all those things you want to do, because you may have health issues preventing you from doing those things - so get out there NOW and DO IT ALL. The "bucket list" should be started now. (Note: I only copied information for 5 countries, but the actual chart has 188 countries. Do go check it out.) From NPR News:

Check Out Life Spans Around The World — And Likely Years Of Ill Health

How Long Will You Live — And How Many Of Those Years Will Be Healthy?

Here are the life expectancies in 188 countries — and the number of unhealthy years a person faces. No matter where you live, the range for years of healthy life is 80 to 90 percent.

Life expectancy compared with global average:

COUNTRY       MALE    UNHEALTHY YEARS       FEMALE       UNHEALTHY YEARS

GLOBAL            68                  8                                     74                       10

CANADA           79                 10                                     83                       12

CHINA               73                   8                                     79                         9

MEXICO             72                  9                                      78                       11

RUSSIA               65                 7                                       76                       10

USA                    76                 11                                      81                       13


Credit: Christopher Groskopf and Alyson Hurt/NPR     Notes: — Life expectancies are estimated for individuals born in 2013.  

Source: Global, regional, and national disability-adjusted life years (DALYs) for 306 diseases and injuries and healthy life expectancy (HALE) for 188 countries, 1990–2013: quantifying the epidemiological transition

It's one of those good news/bad news stories. A study in the medical journal The Lancet found that people around the world — in countries rich, poor and in the middle — are living longer. But here's the rub. You can't count on living those extra years in good health.

In the first of what will be an annual look at health along with life span around the world called the Global Burden of Disease Study, researchers found that between 1990 and 2013, life expectancy rose by 6.2 years. The average life span at birth across the globe is now 71.5 years, though rates vary tremendously by region. People live the longest, according to the Lancet study, in Andorra, in southwestern Europe, or an average of 83.9 years. People die the youngest, an average of 48.3 years, in Lesotho, in Africa.

But regardless of socioeconomics, geography or total number of years lived, the study shows what appears to be a universal part of the human condition: people live an average of one-eighth of their lives in a disabled or unhealthy state.

"What's interesting is that wherever you go around the world, about seven-eighths of life expectancy is healthy," says Peter Byass, professor of global health at UmeaUniversity in Sweden. "I'm not sure we totally understand why.We probably can't do a lot about decreasing this part of life that's not healthy," he adds. "That pretty much appears to be a part of being human."

Healthy life — the measure researchers used, called HALE, or healthy life expectancy years — ranged from a high of 73.4 years in Japan to a low, again in Lesotho, of 42 years. Not much is known about when those years of ill health occur. "A lot of the unhealthy stuff is around end of life," says Byass.

Spending more money on health care doesn't seem to reduce the proportion of life spent in ill health. The study was based on regional data and showed that in high-income North America, men live an average of 76.64 years, but only 66.17 of those years are healthy; women live an average of 81.62 years, but experience good health in only 68.85 of those years. The United States, which spends more on health care than any other country, is part of that high-income region. "This is seen even in places where there's a high investment in health care," says Byass, who wrote a commentary accompanying the Lancet study.

Countries where people die the youngest have the highest rates of communicable diseases like AIDS, malaria and tuberculosis as well as high rates of maternal and childhood mortality and malnutrition. "If we want to have a healthier global population, more equal health, the world has got to invest in getting rid of those avoidable problems in poorer countries, mainly in Africa," says Byass.

Published on Leave a comment on Coffee Appears To Have Lots of Health Benefits

A nice summary article about the benefits and risks of coffee consumption. Summary of effects of drinking coffee: 1) May potentially increase blood pressure, but also may lower the risk for coronary disease, and protect against heart disease. 2) May cut stroke risk by as much as 25%, 3) Linked to  improved glucose metabolism, reduced risk for type 2 diabetes, and promotion of weight loss in overweight patients. 4) May reduce the risk for several cancers. 5) Appears to slow the progression of dementia and Parkinson's disease. 6) A significantly decreased risk of developing depression. 7) Slows progression in alcoholic cirrhosis, hepatitis C, and NAFLD (non-alcoholic fatty liver disease). 8) May be beneficial in dry-eye syndrome, gout, and in preventing MRSA infection. 9) May increase blood pressure, anxiety, insomnia, tremor, withdrawal symptoms, and potential increased risk of glaucoma. From Medscape:

How Healthy Is Coffee? The Latest Evidence

Earlier this year, the Dietary Guidelines Advisory Committee (DGAC) released a report[1] stating that up to five cups of coffee per day, or up to 400 mg of caffeine, is not associated with long-term health risks. Not only that, they highlighted observational evidence that coffee consumption is associated with reduced risk for several diseases, including type 2 diabetes, cardiovascular disease (CVD), and neurodegenerative disorders. The body of data suggesting that moderate coffee—and, in all likelihood, tea—consumption is not only safe but beneficial in a variety of mental and medical conditions is growing fast.

A 2012 study of over 400,000 people, published in the New England Journal of Medicine, reported that coffee consumption is associated with a 10% reduction in all-cause mortality at 13-year follow-up.... It's important to note that much of the evidence on the potential health effects of coffee, caffeine, and other foods and nutrients is associational and doesn't prove causality—observational investigations come with limitations and often rely on error-prone methods such as patient questionnaires. However, the sheer volume of existing observational data linking coffee and/or caffeine with various health benefits—as well as, in many cases, evidence of a dose response—suggests that the most widely consumed stimulant in the world has positive influences on our health. 

Cardiovascular Disease:...However, when caffeine is ingested via coffee, enduring blood pressure elevations are small and cardiovascular risks may be balanced by protective properties. Coffee beans contain antioxidant compounds that reduce oxidation of low-density lipoprotein (LDL) cholesterol, and coffee consumption has been associated with reduced concentrations of inflammatory markers. Moderate coffee intake is associated with a lower risk for coronary heart disease as far out as 10 years, and data suggest that an average of two cups per day protects against heart failure.

Cerebrovascular Disease and Stroke: The vascular benefits of coffee are not lost on the brain. According to a 2011 meta-analysis, consuming between one and six cups per day reportedly cut stroke risk by 17%. A 22%-25% risk reduction was seen in a large sample of Swedish women followed for an average of 10 years.

Diabetes:...Numerous studies have linked regular coffee drinking with improved glucose metabolism, insulin secretion, and a significantly reduced risk for diabetes. Most recently, findings from a long-term study published this year suggest that coffee drinkers are roughly half as likely to develop type 2 diabetes as are nonconsumers, even after accounting for smoking, high blood pressure, and family history of diabetes.

Cancer: ...Evidence suggests that moderate to heavy coffee consumption can reduce the risk for numerous cancers, including endometrial (> 4 cups/day), prostate (6 cups/day), head and neck (4 cups/day), basal cell carcinoma (> 3 cups/day), melanoma,and breast cancer (> 5 cups/day). The benefits are thought to be at least partially due to coffee's antioxidant and antimutagenic properties.

Neurodegeneration: Beyond the short-term mental boost it provides, coffee also appears to benefit longer-term cognitive well-being. A 2012 study reported that patients with mild cognitive impairment and plasma caffeine levels of > 1200 ng/mL—courtesy of approximately three to five cups of coffee per day—avoided progression to dementia over the following 2-4 years. On a related note, a study from last year reported that caffeine consumption appears to enhance memory consolidation....Caffeinated coffee has long been thought to be neuroprotective in Parkinson disease (PD)....—as well as in multiple sclerosis. 

Depression: A 2011 study suggests that a boost in coffee consumption might also benefit our mental health: Women who drank two to three cups of coffee per day had a 15% decreased risk for depression compared with those who drank less than one cup per week. A 20% decreased risk was seen in those who drank four cups or more per day. Newer work also suggests that regular coffee drinking may be protective against depression.

Liver Disease: The liver might help break down coffee, but coffee might protect the liver (in some cases). Evidence suggests that coffee consumption slows disease progression in patients with alcoholic cirrhosis and hepatitis C, and reduces the risk of developing hepatocellular carcinoma. A 2012 study reported that coffee intake is associated with a lower risk for nonalcoholic fatty liver disease (NAFLD), while work published in 2014 found that coffee protects against liver fibrosis in those with already established NAFLD.

And That's Not All…: An assortment of other research suggests that coffee intake might also relieve dry-eye syndrome by increasing tear production, reduce the risk for gout, and potentially fight infection. Coffee and hot tea consumption were found to be protective against one of the medical community's most concerning bugs, methicillin-resistant Staphylococcus aureus (MRSA). While it remains unclear whether the beverages have systemic antimicrobial activity, study participants who reported any consumption of either were approximately half as likely to have MRSA in their nasal passages.

And Finally, the Risks: As is often the case, with benefits come risks, and coffee consumption certainly has negative medical and psychiatric effects to consider. Besides the aforementioned potential increase in blood pressure, coffee can incite or worsen anxiety, insomnia, and tremor and potentially elevate glaucoma risk. Also, given the potential severity of symptoms, caffeine withdrawal syndrome is included as a diagnosis in the DSM-5.

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This is a nice study showing cause and effect:  6 hours of sleep or less at night lowers the body's resistance so that the person is more likely to catch a cold virus. From Science Daily:

Short sleepers are four times more likely to catch a cold

A new study led by a UC San Francisco sleep researcher supports what parents have been saying for centuries: to avoid getting sick, be sure to get enough sleep. The team, which included researchers at Carnegie Mellon University and University of Pittsburgh Medical Center, found that people who sleep six hours a night or less are four times more likely to catch a cold when exposed to the virus, compared to those who spend more than seven hours a night in slumber land.

Scientists have long known that sleep is important for our health, with poor sleep linked to chronic illnesses, disease susceptibility and even premature death. Prather's previous studies have shown that people who sleep fewer hours are less protected against illness after receiving a vaccine. Other studies have confirmed that sleep is among the factors that regulate T-cell levels.

Researchers recruited 164 volunteers from the Pittsburgh, PA, area between 2007 and 2011. The recruits underwent two months of health screenings, interviews and questionnaires to establish baselines for factors such as stress, temperament, and alcohol and cigarette use. The researchers also measured participants' normal sleep habits a week prior to administering the cold virus, using a watch-like sensor that measured the quality of sleep throughout the night.

The researchers then sequestered volunteers in a hotel, administered the cold virus via nasal drops and monitored them for a week, collecting daily mucus samples to see if the virus had taken hold. They found that subjects who had slept less than six hours a night the week before were 4.2 times more likely to catch the cold compared to those who got more than seven hours of sleep, and those who slept less than five hours were 4.5 times more likely.

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Once again, a study finds that a supplement has no benefit - here omega-3 supplements did not slow cognitive decline in older adults. On the other hand, studies find that eating foods with omega-3 fatty acids (such as fish) has beneficial health effects. Regular consumption of fish is associated with lower rates of age-related macular degeneration (AMD), cardiovascular disease, and possibly dementia.  From Science Daily:

No benefit of omega-3 supplements for cognitive decline, study shows

While some research suggests that a diet high in omega-3 fatty acids can protect brain health, a large clinical trial by researchers at the National Institutes of Health found that omega-3 supplements did not slow cognitive decline in older persons. With 4,000 patients followed over a five-year period, the study is one of the largest and longest of its kind.

Dr. Chew leads the Age-Related Eye Disease Study (AREDS), which was designed to investigate a combination of nutritional supplements for slowing age-related macular degeneration (AMD), a major cause of vision loss among older Americans. That study established that daily high doses of certain antioxidants and minerals -- called the AREDS formulation -- can help slow the progression to advanced AMD.

A later study, called AREDS2, tested the addition of omega-3 fatty acids to the AREDS formula. But the omega-3's made no difference. Omega-3 fatty acids are made by marine algae and are concentrated in fish oils; they are believed to be responsible for the health benefits associated with regularly eating fish, such as salmon, tuna, and halibut.* Where studies have surveyed people on their dietary habits and health, they've found that regular consumption of fish is associated with lower rates of AMD, cardiovascular disease, and possibly dementia. "We've seen data that eating foods with omega-3 may have a benefit for eye, brain, and heart health," Dr. Chew explained.

Omega-3 supplements are available over the counter and often labeled as supporting brain health. A large 2011 study found that omega-3 supplements did not improve the brain health of older patients with preexisting heart disease.

With AREDS2, Dr. Chew and her team saw another opportunity to investigate the possible cognitive benefits of omega-3 supplements, she said. All participants had early or intermediate AMD. They were 72 years old on average and 58 percent were female....Participants were given cognitive function tests at the beginning of the study to establish a baseline, then at two and four years later.... The cognition scores of each subgroup decreased to a similar extent over time, indicating that no combination of nutritional supplements made a difference.

* Other omega-3 fatty acids are found in plant foods such as flaxseed, walnuts, soy products, and canola and soybean oils. Specific omega-3 fatty acids from these sources were not studied.

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Some recent studies looked at aspirin use and cancer and found that consistent use for a number of years (5 to 10 years) lowers the rate of a number of cancers, including colon cancer. However, the longer one takes daily aspirin - then harms start adding up, with a major one being gastrointestinal bleeding. NSAIDs (non-steroidal anti-inflammatory drugs) are also linked to lower rates of various cancers, but harms with long-term use are cardiovascular risks (stroke and heart attack). The first article discusses that many doctors think this lower cancer rate occurs because aspirin and NSAIDs lower inflammation, and as we know, inflammation is linked to cancer.

From Science News: Aspirin reverses obesity cancer risk

Research has shown that a regular dose of aspirin reduces the long-term risk of cancer in those who are overweight in an international study of people with a family history of the disease....They found that being overweight more than doubles the risk of bowel cancer in people with Lynch Syndrome, an inherited genetic disorder which affects genes responsible for detecting and repairing damage in the DNA. Around half of these people develop cancer, mainly in the bowel and womb. However, over the course of a ten year study they found this risk could be counteracted by taking a regular dose of aspirin.

Lots of people struggle with their weight and this suggests the extra cancer risk can be cancelled by taking an aspirin.This research adds to the growing body of evidence which links an increased inflammatory process to an increased risk of cancer. Obesity increases the inflammatory response. One explanation for our findings is that the aspirin may be suppressing that inflammation which opens up new avenues of research into the cause of cancer."

When they were followed up ten years later, 55 had developed bowel cancers and those who were obese were more than twice as likely to develop this cancer -- in fact 2.75 times as likely. Following up on patients who were taking two aspirins a day revealed that their risk was the same whether they were obese or not....What is surprising is that even in people with a genetic predisposition for cancer, obesity is also a driver of the disease. 

The researchers believe the study shows that aspirin is affecting an underlying mechanism which pre-disposes someone to cancer and further study is needed in this area. Since the benefits are occurring before the very early stages of developing a tumour -- known as the adenoma carcinoma sequence -- the effect must be changing the cells which are predisposed to become cancerous in later years.

...continue reading "Aspirin and Cancer"

Published on Leave a comment on The Fungi That Live On Our Skin

This article discusses the fungi living on our skin. Recent research (using state of the art genetic analysis) has found that healthy people have lots of diversity in fungi living on their skin. Certain areas seem to have the greatest populations of fungi: in between toes (average of 40 species), the heel (average of 80 species), toenails (average of 80 species), and the genitals. Currently it is thought that there are "intricate interactions between fungi and immune cells on the skin surface", and that often this mutualistic relationship is beneficial, but at other times dysbiosis (when the microbial community is unbalanced or out of whack) can lead to diseases. If the populations get too unbalanced (e.g., antibiotics can kill off bacteria, and then an increase in fungi populations take their place) then ordinarily non-harmful fungi can become pathogenic. Note that: Mutualistic relationship is a relationship between two different species of organisms in which both benefit from the association. From E-Cronicon:

From Head to Toe: Mapping Fungi across Human Skin

The human microbiota refers to the complex aggregate of fungi, bacteria and archaea, found on the surface of the skin, within saliva and oral mucosa, the conjunctiva, the gastrointestinal. When microbial genomes are accounted for, the term microbiome is deployed. In recent years the first in-depth analysis, using sophisticated DNA sequencing, of the human microbiome has taken place through the U.S. National Institutes of Health led Human Microbiome Project. 

Many of the findings have extended, or even turned upside down, what was previously known about the relationship between humans and microorganisms. One of the most interesting areas related to fungi, especially in advancing our understanding about fungal types, locations and numbers and how this affects health and disease....some parts of the body have a greater prevalence of bacteria (such as the arms) whereas fungi are found in closer association with feet.  

A variety of bacteria and fungi are found on the typical 2 square meters that represent the surface of the skin, and within the deeper layers, of a typical adult. These can be considered as ‘residential’ (that is ordinarily found) or ‘transient’ (carried for a period of time by the host.) The resident microorganism types vary in relation to skin type on the human body; between men and women; and to the geographical region in which people live.

The first observation is that many locations across the skin contain considerable populations of fungi. Prime locations, as reported by Findley and colleagues, were inside the ear canal and behind the ear, within the eyebrows, at the back of the head; with feet: on the heel, toenails, between the toes; and with the rest of the body notable locations were the forearm, back, groin, nostrils, chest, palm, and the elbow.

The second observation is that several different species are found, and these vary according to different niches. Focusing on one ecological niche, a study by Oyeka found that the region between toes, taken from a sample of 100 people, discovered 14 genera of fungi. In terms of the individual species recovered, a relatively high number were observed (an average of 40 species.)....the greatest varieties of fungi are to be found on the heel (approximately 80 different species.) The second most populous area is with the toes, where toe nails recover around 80 different species.....With the genitals, where early investigations had suggested that Candida albicans was the most commonly isolated yeasts. However, an investigation of 83 patients by Bentubo., et al.  showed more variety, with high recoveries of Candida parapsilosis, Rhodotorulamucilaginos, Rhodotorulaglutinis, Candida tropicalis and Trichosporoninkin.

The importance of the investigative work into the human skin fungi helps medical researchers understand more fully the connections between the composition of skin-fungi and certain pathologies. Here the intricate interactions between fungi and immune cells on the skin surface is of importance; often this mutualistic relationship is beneficial, at other times dysbiosis can lead to the manifestation of diseases especially when there is a breakdown of the mutualistic relationship.

Changes to fungal diversity can be associated with several health conditions, including atopic dermatitis, psoriasis, acne vulgaris and chronic wounds. Diversity can alter through the over-use of antibiotics, where a decline in bacterial numbers can lead to a rise in fungal populations occupying the same space.

Moreover, research has indicted that patients who have a primary immunodeficiency are host to more populous fungal communities than healthy people. Here it is suggested that the weaknesses in the immune system allow higher numbers of fungi to survive, and, in turn these weaknesses can lead some ordinarily non-harmful species to become pathogenic. Such opportunistic fungi include species of Aspergillus and Candida.

Published on Leave a comment on Some Ways to Get Rid of Ticks

Nice article about ticks, tickborne diseases (of which Lyme disease is one), and possible strategies for coping - whether getting rid of ticks in your yard, or minimizing risk. The only thing I disagreed with is that the author gives the time for transmission of a tick borne disease as needing over 24 hours of the tick being attached (this number is frequently given by authorities). Others disagree (as do I based on experience), and a recent article on transmission time after attachment stated that in animal research, transmission can occur in <16 hours. Some human studies also found transmission times of less than 24 hours (and as little as 6 hours of tick attachment), but so far the minimum attachment time for transmission of infection has never been established. Read the complete article for more pet and tick advice. From Mother Earth News:

How to Get Rid of Ticks and Prevent Lyme Disease 

About 300,000 people are diagnosed with Lyme disease every year, according to new estimates from the Centers for Disease Control and Prevention (CDC). Lyme disease is caused by bacteria that multiply in the bodies of ticks, people and animals, including mice, deer and dogs....  the tiny blacklegged deer tick, which is the most common transmitter of Lyme disease.

These deer ticks pick up Lyme bacteria (Borrelia burgdorferi) when they feed on the blood of infected mice, chipmunks and other hosts. Infected ticks in both the nymphal and adult life stages can then transfer the Lyme bacteria to humans if they latch on for a meal and feed for approximately 36 hours or more. Lyme disease is highly treatable when it’s detected early, but devastating when the infection goes unnoticed for more than a few months.

Let Poultry Help with Tick Prevention  Leafy wooded areas and grassy meadows are the preferred habitats for blacklegged deer ticks and American dog ticks, which both spend their larval stage in leaf litter, their nymphal stage on small animals, and their adult stage in tall grass or other shrubby vegetation. People have learned how to get rid of ticks by keeping foraging chickens and guinea fowl on their property. In April 2015, we launched the MOTHER EARTH NEWS Chickens and Ticks Survey, and responses revealed that: 71 percent had an existing tick problem before they got poultry, 78 percent kept poultry that helped control or eliminate ticks within the birds’ feeding range, 46 percent experienced a drop in tick populations within a month after getting poultry; 45 percent saw good control after several months to a year.Many respondents noted that small bantam chickens and game hens can get into tight spots where larger birds can’t fit, resulting in better tick control....

Permethrin-Treated Clothes and ‘Tick Tubes’  If you live in one of the 13 states where Lyme disease risk is highest, learning how to get rid of ticks should be a top priority. You might want to consider using permethrin, a non-organic pesticide that repels and kills ticks. Permethrin is more potent and persistent than the organic materials we usually recommend. We suggest using a formula designed to be applied to clothing rather than misters, sprayers, foggers or other permethrin products. Clothing products that are pre-treated with permethrin are available, or you can buy permethrin with instructions for how to use it to treat your clothes. Take care to not expose kids to this pesticide...The EPA also classified permethrin as “likely to be carcinogenic to humans,” so weigh the risk of infrequent exposure to the risk of Lyme disease in your area.

You might also consider permethrin-infused “tick tubes,” which are designed to kill ticks on white-footed mice as well as chipmunks and rats, the main animals from which ticks become infected with Lyme. The tick tubes offer nesting materials impregnated with the pesticide to such critters. The animals then take the material back to their nests, where it kills any ticks that may have latched on to the adults and their young. The small amount of permethrin used in tick tubes is not water-soluble, so it’s not likely to end up anywhere but in a nest. Sold commercially as Damminix Tick Tubes, these devices are easy to make yourself....

Herbal Tick Repellents   Many of our survey respondents reported that they apply veterinary-prescribed tick preventatives on their dogs and cats, but would prefer more organic repellents. Two plant-based aromatics — sweet-scented “rose” geranium (Pelargonium graveolens) essential oil and eastern red cedar (Juniperus virginiana; also known as “red cedarwood”) essential oil — were repeatedly recommended by readers who use them as spray-on repellents for pets and family members alike....Both geranium essential oil and eastern red cedar essential oil have proven to be successful repellents against ticks in various life stages, according to the Journal of Agricultural and Food Chemistry and the Journal of Medical Entomology, respectively.

Using full-strength essential oil can injure human skin and overwhelm pets’ sensitive noses, so follow this simple recipe when making a liquid anti-tick spray: In an 8-ounce spray bottle, combine 10 to 20 drops of rose geranium or eastern red cedar essential oil with 1 teaspoon of vodka or rubbing alcohol. Fill the rest of the bottle with water and shake to combine. The spray can be applied to your skin or clothing....

More Tick Prevention Tricks Fencing out deer, the primary host of adult Lyme-infected ticks, can help prevent ticks from reaching your land. Low-cost, plastic-mesh deer fencing is available online and at farm stores. Ticks rarely inhabit lawns that are mowed regularly. Raking up leaves and composting them deprives overwintering ticks of shelter.

When hiking where tick populations are high, stay on the trails and dress defensively — pull your socks up over your pants. When only shorts will do, some people cut off the ankle sections of old socks, spray them with a repellent, and wear the tubes around their calves like tick-deterring leg warmers.

A study published in Experimental and Applied Acarology found that spraying outdoor areas with Safer-brand organic insecticidal soap in spring, when blacklegged deer tick nymphs are active, can provide treatment that is equally as effective as spraying with the insecticide chlorpyrifos.

After you’ve been outdoors, check your dogs for any ticks that may have latched on, and then make your way to a hot, soapy shower followed by a careful body check. You can kill any ticks that have attached to your clothing by immediately putting your clothes into the dryer for 15 minutes on the hottest setting, and then washing them. Most ticks are sensitive to dry heat, but may survive even the hottest wash. 

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 Artificial trans fats in foods are bad for health in so many ways: linked to increased risk of coronary heart disease, atherosclerosis, inflammation, and risk of early death. And even though the FDA is finally phasing out partially hydrogenated oils (because they have high levels of artificial trans fats) within the next 3 years, trans fats will still be found in foods (processed foods). How can this be? Well, trans fats are still allowed to be in foods that are labeled as 0 trans fats if it is less than .5 grams trans fats per serving (a loophole allows them to round downward to zero ). And according to research by Environmental Working Group (EWG), trans fats are being used by the food industry in undisclosed ways in amounts low enough to exploit the trans fat loophole. Besides partially hydrogenated oils, they are found in other types of refined oils, monoglycerides, diglycerides and other emulsifiers, and even in flavors and colors. So when you see ZERO trans fats on the label, it doesn't actually mean that it is zero trans fats. The problem is that over the course of a day, eating a number of foods and servings that have under .5 grams of trans fats adds up to levels that research now says has negative health effects!

Artificial trans fats are found in a lot of processed foods. A EWG analysis found that harmful artificial trans fatty acids lurk in more than 27 percent of more than 84,000 processed foods common in American supermarkets.  Another 10 percent contain ingredients likely to contain trans fat. Foods most likely to have hidden trans fats are: breakfast bars, granola and trail mix bars, pretzels, peanut butter, crackers, breads, kids fruit snacks, kids cereal, graham crackers, whipped topping, non-dairy creamers, pudding mixes, cupcakes, and ice cream cones.

So what can you do? Read ingredient lists on labels and try to avoid foods with the above mentioned ingredients: partially hydrogenated oils, emulsifiers, monoglycerides, diglycerides and other emulsifiers, artificial flavors, artificial flavors, and colors. Try to cut back or avoid foods that have ingredients that are not real foods - tough to do, but it can be done.

And the amazing part, saturated fats (such as butter) are NOT linked to early death and heart disease, but trans fat in foods is. Latest research, from Science Daily:

Trans fats, but not saturated fats like butter, linked to greater risk of early death and heart disease

A study led by researchers at McMaster University has found that that trans fats are associated with greater risk of death and coronary heart disease, but saturated fats are not associated with an increased risk of death, heart disease, stroke, or Type 2 diabetes. The findings were published today by the British Medical Journal (BMJ)...."For years everyone has been advised to cut out fats. Trans fats have no health benefits and pose a significant risk for heart disease, but the case for saturated fat is less clear," said de Souza.

Saturated fats come mainly from animal products, such as butter, cows' milk, meat, salmon and egg yolks, and some plant products such as chocolate and palm oils. Trans unsaturated fats (trans fats) are mainly produced industrially from plant oils (a process known as hydrogenation) for use in margarine, snack foods and packaged baked goods.

Contrary to prevailing dietary advice, a recent evidence review found no excess cardiovascular risk associated with intake of saturated fat. In contrast, research suggests that industrial trans fats may increase the risk of coronary heart disease.

To help clarify these controversies, de Souza and colleagues analysed the results of 50 observational studies assessing the association between saturated and/or trans fats and health outcomes in adults....The team found no clear association between higher intake of saturated fats and death for any reason, coronary heart disease (CHD), cardiovascular disease (CVD), ischemic stroke or type 2 diabetes. However, consumption of industrial trans fats was associated with a 34 per cent increase in death for any reason, a 28 per cent increased risk of CHD mortality, and a 21 per cent increase in the risk of CHD.

Inconsistencies in the studies analysed meant that the researchers could not confirm an association between trans fats and type 2 diabetes. And, they found no clear association between trans fats and ischemic stroke. The researchers stress that their results are based on observational studies, so no definitive conclusions can be drawn about cause and effect.

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Trans fats are commonly used in processed foods to improve taste, texture, and shelf life. Artificial trans fats are found in partially hydrogenated oils and in other ingredients, such as refined oils, emulsifiers, flavors and colors. Even those processed foods that say zero trans fats may contain trans fats - due to a loophole in labeling laws (if it has less than .5 grams per serving, then it can be rounded down to zero - thus allowing the incorrect claim of zero trans fats). Eating a variety of processed foods, each containing a little trans fats, easily adds up to eating a significant amount daily.Trans fats in the diet have long been linked to cardiovascular disease, artherosclerosis, obesity, oxidative stress, and inflammation, but now research finds that it is linked to a poorer memory in middle-aged men under the age of 45. From Science Daily:

Dietary trans fat linked to worse memory

Higher consumption of dietary trans fatty acids (dTFA), commonly used in processed foods to improve taste, texture and durability, has been linked to worsened memory function in men 45 years old and younger, according to a study.

Researchers evaluated data from 1,018 men and women who were asked to complete a dietary survey and memory test involving word recall. On average, men aged 45 and younger recalled 86 words; however, for each additional gram of trans fats consumed daily, performance dropped by 0.76 words. This translates to an expected 12 fewer words recalled by young men with dTFA intake levels matching the highest observed in the study, compared to otherwise similar men consuming no trans fats.

After adjusting for age, exercise, education, ethnicity and mood, the link between higher dTFA and poorer memory was maintained in men 45 and younger.The study focused predominantly on men because of a small number of women in this age group. However, including women in the analysis did not change the finding, said Golomb. An association of dTFA to word memory was not observed in older populations. Golomb said this is likely due to dietary effects showing more clearly in younger adults. Insults and injuries to the brain accrue with age and add variability to memory scores that can swamp ability to detect diet effects.

Trans fatty acids have been linked to negative effects on lipid profiles, metabolic function, insulin resistance, inflammation and cardiac and general health. In 2013, the United States Food and Drug Administration issued a preliminary determination that trans fats were no longer generally recognized as safe. According to the Centers for Disease Control, reducing dTFA consumption could prevent 10,000 to 20,000 heart attacks and 3,000 to 7,000 coronary heart disease deaths per year in the U.S.