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Category: cancer

Published on Leave a comment on Enormous Amounts of One Pesticide Used In the US

People don't realize the incredibly large amounts of pesticides applied to crops and soil in the US each year. Hundreds of millions of pounds! Which is the reason pesticides are found in our air, rain, water, soil, our foods, and in our bodies.

One of the pesticides that scientists are getting increasingly concerned with is the weed-killer glyphosate. It is the most used herbicide (weed-killer) in the world! It is found in Roundup, in non-organic crops, and even in genetically modified crops that are glyphosate resistant. Especially used on corn and soybeans, but also in a variety of crops (e.g., wheat, oats, cranberries, grapes, apples, beans).

The following story lays out the great amounts used in some states, especially in the midwest and southern states. Overall, an average of almost 130 pounds of glyphosate were sprayed per square mile in US counties each year.

But some counties had incredibly high amounts, such as Nueces County, Texas which has the highest use of glyphosate: more than 1,100 pounds sprayed per square mile. Iowa and Illinois (corn and soybean crops) accounted for 15% of national usage. The least was in northeastern (e.g., Massachusetts) and southwestern states (e.g., Nevada).

Evidence for health harms are increasing each year, such as an increased risk of cancer (e.g., non-Hodgkin lymphoma), premature births, endocrine disruption, and even disruptions of the gut microbiome (it kills beneficial microbes in the gut). The percentage of people with glyphosate detected in their urine, and the amount (concentration) has been rising over time. It can now be detected in almost all of us.

By the way, the EPA has raised "allowable limits" of glyphosate in foods over the years - when the pesticide industry asked for it. The US limits are much higher than those allowed in Europe - twice the levels! (Once again, in the US the EPA favors industry, not the people it's supposed to be protecting.)

This article is from October 2022, but it highlights  the incredibly high amounts of glyphosate applied in the US (see the good interactive map). Excerpts from NBC News: A potentially cancer-causing chemical is sprayed on much of America’s farmland. Here is where it is used the most.

Every day, farms across the country use a potentially cancer-causing chemical that is in the world’s most common weedkillers. And data shows that it’s most used in the Midwest and parts of the South. ...continue reading "Enormous Amounts of One Pesticide Used In the US"

Published on Leave a comment on Cigarette Smoke and Bladder Cancer In Dogs

It has long been known that dogs get cancers, from similar chemical exposures as humans (e.g., lymphoma from exposure to weed-killer 2,4-D on lawns). A recent study found that Scottish terriers exposed to cigarette smoke develop bladder cancer about 6 times more than terriers not exposed to cigarette smoke.

Dogs can be viewed as "sentinel species" or early warning systems for harmful chemical exposures. This is because they show risks or dangers due to chemical exposures in the environment earlier than humans. They live alongside humans and so are exposed to the same things as humans.

By the way, smoking is also considered a major risk factor in human urinary bladder cancers.

From Futurity (site that publishes research news from universities): CIGARETTE SMOKE MAY SPIKE DOGS’ BLADDER CANCER RISK

By assessing individual dogs and studying their medical history, scientists are beginning to untangle the question of who gets cancer and why, and how best to detect, treat, and prevent it. ...continue reading "Cigarette Smoke and Bladder Cancer In Dogs"

Published on Leave a comment on Improve Fitness To Lower Risk of Prostate Cancer

A recent large Swedish study found that men who increased their cardiorespiratory fitness had a  significantly lower prostate cancer risk (when compared to men whose cardiorespiratory fitness stayed the same or declined) .

Men who increased their fitness by more than 3% over the course of a year had a 35% lower risk of prostate cancer during the 7 year follow-up. Cardiorespiratory fitness was measured two times (baseline and a year later) by peddling on a stationary cycle and measuring absolute and relative VO2 max - the amount (volume) of oxygen the body uses while exercising as hard as possible.

By the way, other studies also find that cardiorespiratory fitness is associated with the risk of some cancers, as well as dying from certain cancer types. This study did not find an increase in cancer deaths, but it also only followed the men 7 years.

Bottom line: Increase your activity levels! Walking, hiking, bicycling gardening, sports, exercises - it all counts. You can do it!

From Medical Xpress: Increase in annual cardiorespiratory fitness by more than 3% linked to 35% lower prostate cancer risk

An increase in annual cardiorespiratory fitness by 3% or more is linked to a 35% lower risk of developing, although not dying from, prostate cancer, suggests research published online in the British Journal of Sports Medicine. ...continue reading "Improve Fitness To Lower Risk of Prostate Cancer"

Published on Leave a comment on Hundreds Of Common Chemicals Are Linked to Breast Cancer Risk

People worry about breast cancer and whether exposure to chemicals "in the environment" can lead to breast cancer. According to many studies the answer is: YES, absolutely - and this is why they are called carcinogens (a substance capable of causing cancer). What are the chemicals?

A recent study found that 921 chemicals are likely "breast carcinogens" and thus increase the risk of breast cancer. Many of these are commonly used in everyday products, including personal care products. The authors also pointed out that this list of chemicals is incomplete because information is not publicly available on many additional chemicals . (Unfortunately, the EPA is not asking for more information and testing to be done on many chemicals.)

The authors of the study point out  that breast cancer is "both the most commonly diagnosed cancer type and leading cause of cancer death among women worldwide". So knowing which chemicals could potentially cause breast cancer is important. Some examples: phthalates, parabens, many pesticides, endocrine disruptors.

Bottom line: Read ingredient lists in order to avoid many problematic chemicals. For example; if you see parabens or phthalates listed (e.g., in lotion) - avoid those products. Avoid fragrances, stain repellents, antimicrobials. Eat as many organic foods as possible (to avoid pesticide residues in non-organic foods). [See more tips on avoiding toxic chemicals.]

Also, avoid using pesticides as much as possible, and instead use least toxic Integrated Pest Management (IPM) or organic methods, both inside the home and outside.

Excerpts from Environmental Health News: More than 900 common chemicals linked to breast cancer risk: Study

More than 900 chemicals commonly found in consumer products and the environment have been linked to breast cancer risk in a new study. ...continue reading "Hundreds Of Common Chemicals Are Linked to Breast Cancer Risk"

Published on Leave a comment on Book On Cancer Prevention Focusing On Environmental Causes

There is another very good book to read about environmental causes of cancer. It's called A New War On Cancer: The Unlikely Heroes Revolutionizing Prevention by Kristina Marusic. Published by Island Press in 2023.

What makes this book so interesting is that it profiles everyday individuals who are actively working towards preventing cancers caused by environmental causes. They are  doing this by devoting their lives towards preventing cancers caused by pollution and chemicals implicated in causing cancer (e.g., pesticides, endocrine disruptors).

I found myself marking up the book as I read - so many good quotable statements. In the end it was a book that offers hope, and things we can all do.

The forward is written by Dr. Philip Landrigen - a famous researcher looking at toxic chemicals (e.g., pesticides, lead, chemicals in Gulf War Veterans' Illnesses) and how they impact human health. He is one of the world's leading advocates for children's health.

Book: A New War on Cancer: The Unlikely Heroes Revolutionizing Prevention By Kristina Marusic, with a Forward by Philip J. Landrigan , Island Press , 2023.

Published on Leave a comment on Some Cancers In Women Linked to Chemical Exposures

Do you know what chemicals you're exposed to on a daily basis? A recent study found that women with cancers of the breast, uterus, skin (melanoma), or ovaries had significantly higher levels of certain endocrine disrupting chemicals in their bodies than women without any of those cancers.

The researchers looked at levels of some hormone disrupting chemicals: PFAS (per- and polyfluoroalkyl substances), phenols (e.g. BPA), and parabens in both men and women. They found that women had higher levels of endocrine disruptors for 4 types of cancers (breast, uterine, ovarian, and melanoma). However, there was no relationship between the endocrine disruptors and thyroid cancer in men or women, and no relationship in men with prostate cancer.

The reason the researchers looked at breast, prostate, thyroid, ovarian, endometrial, and testicular cancers, and melanoma is because they are "hormone-mediated" cancers. That is, hormones play a role in growth and progression of these cancers.

Bottom line: You cannot totally avoid these chemicals because they are used in so many products, but you can really lower your exposure to them. Read Avoiding Harmful Chemicals for easy tips on reducing your exposure to these harmful chemicals. For example, don't use non-stick pots and pans, don't use plug-in air fresheners, and try to use fragrance-free or unscented products as much as possible. Use paraben and phthalate-free personal care products.

From Medical Xpress: Study finds significant chemical exposures in women with cancer

In a sign that exposure to certain endocrine-disrupting chemicals may be playing a role in cancers of the breast, ovary, skin and uterus, researchers have found that people who developed those cancers have significantly higher levels of these chemicals in their bodies. ...continue reading "Some Cancers In Women Linked to Chemical Exposures"

Published on Leave a comment on Drinking Soda and Fruit Drinks Daily Linked to Risk of Liver Cancer and Death From Chronic Liver Diseases

Once again research finds that drinking sugar sweetened soft drinks or fruit drinks (not juices) is unhealthy. This time a study found that drinking one or more such beverages daily was linked to a higher rate of liver cancer and death from chronic liver diseases, when compared to those drinking 3 or fewer such drinks per month.

This is an important finding because the majority of adults in the US consume one or more sweetened beverages daily! On the other hand, in this study drinking one or more artificially sweetened soda and drinks daily did not have an increased rate of liver cancer or death from chronic liver disease.

By the way, the researchers kept referring to the sweetener as sugar, but in reality the sweetener in (almost) all such beverages is high fructose corn syrup.

Excerpts from Science Daily: Women who consumed sugar sweetened beverage daily had higher risk of developing liver cancer and chronic liver disease

Approximately 65% of adults in the United States consume sugar sweetened beverages daily. Chronic liver disease is a major cause of morbidity and mortality worldwide and can result in liver cancer and liver disease-related mortality. ...continue reading "Drinking Soda and Fruit Drinks Daily Linked to Risk of Liver Cancer and Death From Chronic Liver Diseases"

Published on Leave a comment on Short Bursts of Physical Activity Associated With Lower Cancer Risk

Great news for people who don't have the time or the desire to engage in exercise routines, gym visits, or sports. A recent large study found that several very short bursts of physical activity (each less than a minute or two) during the day are beneficial to health. They lower cancer risk!

Researchers followed 22,398 non-exercising adults (average age 62 years) for 7 years. The participants wore tracking devices (wrist accelerometers) for 1 week at the beginning of the study to measure their activity levels. Starting at year 2 their cancer incidence was looked at.

They found that several short bursts of vigorous physical activity (each lasting less than 1 or 2 minutes) each day was associated with lower rates of cancer. And it was a dose response - the more of these little bursts of physical activity over the day, the lower the rates of cancer, especially physical activity related cancer.

About 3 1/2 minutes a day of vigorous activity was associated with a 17 to 18% reduction in cancer risk, but 4 1/2 minutes a day was associated with a 31% to 32% reduction in physical activity-related cancers (e.g., breast, endometrial, and colon cancers).

Bottom line: Engage in a little huffing and puffing physical activity every day and lower your risk of cancer. Run up those stairs! Dance to a song! Carry those heavy groceries! Every bit counts. This could be because short bursts of physical activity improve cardiorespiratory fitness and lower inflammation.

Excerpts from Science Daily: Short bursts of daily activity linked to reduced cancer risk

Promising new research suggests a total of just 4.5 minutes of vigorous activity that makes you huff and puff during daily tasks could reduce the risk of some cancers by up to 32 percent. ...continue reading "Short Bursts of Physical Activity Associated With Lower Cancer Risk"

Published on Leave a comment on Common Cleaning Chemical Linked to Parkinson’s Disease
Dry cleaning Credit: Wikipedia

A widely used cleaning chemical (even in dry cleaning!) has been linked to Parkinson's disease by an international team of researchers. In a piece published in the Journal of Parkinson's Disease, they built a strong case that the chemical trichloroethylene (TCE) is one of the causes of Parkinson's disease. This is based on the existing evidence (both human and animal).

Trichloroethylene was widely used in the past (600 million lbs. per year at its peak in the 1970s), and is still widely used. It is environmentally persistent, and contaminates soil, air, and water. Vapors from underground water and soil contamination seep out into homes, schools, and workplaces. It is known to be carcinogenic (cancer causing) and associated with numerous cancers and other health harms, including birth defects.

TCE has had numerous industrial, consumer, military, and medical applications. For example, it is used in dry cleaning clothes, removing paint, as a degreaser, carpet cleaner, and engine cleaner. It even was used to produce  decaffeinated coffee in the past! Many US sites are now contaminated with TCE, including military bases.

The scientists point out that Parkinson's disease has increased so much (by 500%) that there must be exposure to something else (or more than 1 thing), and they find a strong link to TCE. They refer to Parkinson's as "the world's fastest growing brain disease".

By the way, a number of other toxic chemicals are associated with Parkinson's disease, (e.g., some pesticides, some drugs), long-term welding exposure, and even head trauma.

The researchers urge banning both the production of TCE and its use, urge the clean up sites that are contaminated with TCE, and more research.

Excerpts from Medical Xpress: Common dry cleaning chemical linked to Parkinson's

A common and widely used chemical may be fueling the rise of the world's fastest growing brain condition—Parkinson's disease. For the past 100 years, trichloroethylene (TCE) has been used to decaffeinate coffee, degrease metal, and dry clean clothes. It contaminates the Marine Corps base Camp Lejeune, 15 toxic Superfund sites in Silicon Valley, and up to one-third of groundwater in the U.S. TCE causes cancer, is linked to miscarriages and congenital heart disease, and is associated with a 500% increased risk of Parkinson's disease. ...continue reading "Common Cleaning Chemical Linked to Parkinson’s Disease"

Published on Leave a comment on Certain Nutrients Associated With a Lower Risk of Prostate Cancer

Eating your fruits and vegetables, especially a rainbow assortment of them, is associated with a lower risk of prostate cancer as well speeding up recovery in men who received radiation treatment for prostate cancer.

Two recent studies by the same group of Australian researchers found that certain micronutrients found in foods are lower in men with prostate cancer (compared to healthy men). These are lycopene, selenium, lutein, lycopene, α-carotene, β-carotene. Lycopene and selenium appear to be especially important.

Tomatoes and tomato products (e.g., tomato sauce) are an especially good source of lycopene. Other lycopene rich foods are: watermelons, grapefruits, guava, melons, papayas.  Selenium rich foods include Brazil nuts, seafood, organ meats, beef, pork, chicken, turkey, and eggs.

From Medical Xpress: Rainbow of fruit and veg the best prevention against prostate cancer

Men who consume colorful fruits and vegetables on a regular basis are less likely to be diagnosed with prostate cancer (PC), according to new research by University of South Australia scientists.

A rainbow of foods rich in certain micronutrients helps to prevent prostate cancer (PC) as well as speed up recovery among men who undergo radiation treatment for the disease. ...continue reading "Certain Nutrients Associated With a Lower Risk of Prostate Cancer"