Colonoscopy Prevents Colorectal Cancer



A large new public health study shows that colonoscopy remains the single most effective tool for the prevention of colorectal cancer.


 

COLONOSCOPY PREVENTS COLORECTAL CANCER

As I discuss in my book, A Cancer Prevention Guide for the Human Race, colorectal cancer remains the third most common type of cancer in both men and women, and the third most common cause of cancer death among both men and women.

In A Cancer Prevention Guide for the Human Race, I discuss the known lifestyle and dietary factors associated with colorectal cancer risk, as well as evidence-based strategies to reduce your risk of developing this form of cancer.  One of the most important of these colorectal prevention strategies is screening colonoscopy.  Since the vast majority of colon and rectal cancers first begin as benign polyps, the identification and removal of these premalignant polyps (“adenomas”) can actually prevent the future development of this potentially deadly form of cancer.

Now, a new clinical research study, which appears in the current issue of the New England Journal of Medicine, reveals just how important, and how effective, screening colonoscopy is in preventing colon and rectal cancer.

The Nurses’ Health Study and the Health Professionals Follow-up Study are two very large ongoing prospective public health studies.  In this case, 88,902 volunteers from these two studies were followed for an average of 22 years.  During this time, 1,815 study volunteers were diagnosed with colorectal cancer and 474 volunteers died of colorectal cancer.

Among the volunteers who underwent screening colonoscopy, there was a 43 percent reduction in the risk of developing colorectal cancer if they had undergone polyp removal during colonoscopy, compared to study volunteers who did not undergo colonoscopy.  Among the study participants who underwent colonoscopy, and who had no polyps detected, their risk of developing colorectal cancer was 56 percent lower when compared to the volunteers who did not undergo colonoscopy.  The authors of this study also noted that screening colonoscopy was associated with a 68 percent reduction in the risk of dying from colorectal cancer, based upon the results of this very large prospective public health study.

The findings of this very important public health study show that screening colonoscopy remains the single most effective method of preventing colorectal cancer, and preventing death due to colorectal cancer.  At the present time, the American Cancer Society recommends that people with an average risk of developing colorectal cancer should undergo their first colonoscopy at age 50.  If this initial screening colonoscopy is normal, then patients should undergo routine screening colonoscopy every 10 years thereafter, as long as each subsequent colonoscopy remains normal.

Although many people shy away from colonoscopy due to concerns about discomfort, or due to modesty concerns, colonoscopy remains one of the most effective cancer screening and cancer prevention tools available.  Therefore, if you are due (or overdue) for screening colonoscopy, please do not delay in having this potentially lifesaving test performed.


For a groundbreaking overview of cancer risks, and evidence-based strategies to reduce your risk of developing cancer, order your copy of my bestselling book, “A Cancer Prevention Guide for the Human Race,” from AmazonBarnes & NobleBooks-A-MillionVroman’s Bookstore, and other fine bookstores!

Within one week of publication, A Cancer Prevention Guide for the Human Race was ranked #6 among all cancer-related books on the Amazon.com “Top 100 Bestseller’s List” for Kindle e-books. Within three months of publication, A Cancer Prevention Guide for the Human Race was the #1 book on the Amazon.com Top 100 New Book Releases in Cancer” list.


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According to recent Bureau of Labor Statistics, the unemployment rate for veterans who served on active duty between September 2001 and December 2011 is more than 12 percent.  A new website, Veterans in Healthcare, seeks to connect veterans with potential employers.  If you are a veteran who works in the healthcare field, or if you are an employer who is looking for physicians, advanced practice professionals, nurses, corpsmen/medics, or other healthcare professionals, then please take a look at Veterans in Healthcare. As a retired veteran of the U.S. Army, I would also like to personally urge you to hire a veteran whenever possible.


Disclaimer:  As always, my advice to readers is to seek the advice of your physician before making any significant changes in medications, diet, or level of physical activity


Dr. Wascher is an oncologic surgeon, professor of surgery, cancer researcher, oncology consultant, and a widely published author


 

I and the staff of Weekly Health Update would again like to take this opportunity to thank the more than 100,000 health-conscious people from around the world who visit this premier global health information website every month.  Over the past 12 months, more than 3.5 million pages of high-quality medical research findings were served to the worldwide audience of health-conscious readers.  As always, we enjoy receiving your stimulating feedback and questions, and I will continue to try and personally answer as many of your inquiries as I possibly can.


 


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Poverty and Low Educational Levels Increase Colorectal Cancer Risk






 

A new study finds that diet and lifestyle choices among the poor account for a high percentage of colorectal cancer cases in that population.


 

 

POVERTY AND LOW EDUCATIONAL LEVELS INCREASE COLORECTAL CANCER RISK

As I discuss in my bestselling book, A Cancer Prevention Guide for the Human Race, the risk of developing GI tract cancers, including colorectal cancer, is heavily influenced by diet and other modifiable lifestyle factors.

Colorectal cancer tends to be more common in people at the lower end of the socioeconomic ladder, and a number of explanations for this observation have been proposed, although the actual reasons for this finding have not been clear.  Now, a newly published update of the enormous National Institutes of Health-AARP Diet and Health Study sheds important light on the disparity in colorectal cancer incidence observed between people at the lower end of the socioeconomic spectrum and those at the higher rungs.  This ongoing prospective public health study is one of the largest such studies in the world, having enrolled more than 506,000 patient volunteers thus far.  This study update appears in the current issue of the Journal of the National Cancer Institute.

During the course of this huge ongoing public health study, thus far, 7,676 patient volunteers have developed colorectal cancer.

All of the patient volunteers in this gigantic clinical research study were assessed for the following dietary and lifestyle factors known to increase colorectal cancer risk: lack of physical activity (sedentary lifestyle), unhealthy fat- and meat-rich diets, smoking, and obesity.  When these lifestyle-associated risk factors for colorectal cancer were assessed in patient volunteers at various socioeconomic levels, a clear pattern emerged.  Among patient volunteers with less formal education and in lower income brackets, there was a significantly higher likelihood of engaging in dietary and lifestyle habits known to increase colorectal cancer risk.  Indeed, a striking 44 percent of the colorectal cancer cases that developed during the course of this research study appeared to be associated with high-risk diets and lifestyles among patient volunteers who reported lower levels of formal education.  Similarly, 36 percent of the colon cancer cases that developed during the course of this study were associated with high-risk diet and lifestyle factors among patient volunteers reporting lower income levels.

In view of the huge number of patient volunteers participating within this study, the findings presented above are highly likely to accurately reflect a true cause-and-effect relationship, rather than potentially coincidental “associations.”  While it has long been known that folks at the lower end of the socioeconomic spectrum tend to engage in riskier dietary and lifestyle behaviors than the general population, the eye-opening findings of this study indicate that the “excess” colorectal cancer risk among people with lower education and income levels is strikingly linked to modifiable dietary and lifestyle factors known to increase colorectal cancer risk (as well as other cancer and serious non-cancer illnesses, I might add).  As is the case with cardiovascular disease, diabetes, high blood pressure, stroke, and other diet and lifestyle associated chronic illnesses, colorectal cancer disproportionately affects the poor in our society.  Thus, the disturbing findings of this public health study indicate that more must be done to educate those at greatest risk for colorectal cancer (and other serious cancer and non-cancer diet and lifestyle associated illnesses) regarding healthier diet and lifestyle choices.


A Cancer Prevention Guide for the Human Race is now available in both printed and digital formats from all major bookstores.  Get your copy now, and begin living an evidence-based cancer prevention lifestyle now!


At this time, more than 8 percent of Americans are unemployed.  According to the Bureau of Labor Statistics, however, the unemployment rate for veterans who served on active duty between September 2001 and December 2011 is now more than 12 percent.  A new website, Veterans in Healthcare, seeks to connect veterans with potential employers.  If you are a veteran who works in the healthcare field, or if you are an employer who is looking for physicians, advanced practice professionals, nurses, corpsmen/medics, or other healthcare professionals, then please take a look at Veterans in Healthcare. As a retired veteran of the U.S. Army, I would also like to personally urge you to hire a veteran whenever possible.


For a groundbreaking overview of cancer risks, and evidence-based strategies to reduce your risk of developing cancer, order your copy of my bestselling book, “A Cancer Prevention Guide for the Human Race,” from AmazonBarnes & NobleBooks-A-MillionVroman’s Bookstore, and other fine bookstores!

Within one week of publication, A Cancer Prevention Guide for the Human Race was ranked #6 among all cancer-related books on the Amazon.com “Top 100 Bestseller’s List” for Kindle e-books. Within three months of publication, A Cancer Prevention Guide for the Human Race was the #1 book on the Amazon.comTop 100 New Book Releases in Cancer” list.




Disclaimer:  As always, my advice to readers is to seek the advice of your physician before making any significant changes in medications, diet, or level of physical activity


 

Dr. Wascher is an oncologic surgeon, professor of surgery, cancer researcher, oncology consultant, and a widely published author


 

I and the staff of Weekly Health Update would again like to take this opportunity to thank the more than 100,000 health-conscious people from around the world who visit this premier global health information website every month.  (More than 1.3 million pages of high-quality medical research findings were served to the worldwide audience of health-conscious people who visited Weekly Health Update in 2011!)  As always, we enjoy receiving your stimulating feedback and questions, and I will continue to try and personally answer as many of your inquiries as I possibly can.


 






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Obesity Linked to Deadly Form of Esophagus and Upper Stomach Cancer



 

A large new study reveals that obesity around the stomach area sharply increases the risk of cancer of the esophagus and upper stomach.


 

OBESITY LINKED TO DEADLY FORM OF ESOPHAGUS AND UPPER STOMACH CANCER

As I discuss in my bestselling book, A Cancer Prevention Guide for the Human Race, obesity remains an underappreciated risk factor for cancer, including some of the most deadly forms of cancer.  As I also specifically discuss in my book, the rising incidence of a formerly rare form of cancer, adenocarcinoma of the esophagus and the gastroesophageal junction (the area where the esophagus and stomach join together), has been directly linked to steadily increasing levels of obesity in the United States and around the world by previous studies.  Now, newly reported data from a huge prospective public health study, the National Institutes of Health-American Association of Retired Persons (NIH-AARP) study, provides further insight into the serious impact of obesity on the risk of these formerly rare types of cancer.  This update of the NIH-AARP study appears in the current issue of the journal Gut.

The massive NIH-AARP study currently includes a whopping 218,854 volunteers, making it one of the largest ongoing prospective public health studies in the world.  Because of the enormous size of this clinical study, its findings are very likely to be highly significant.

During the course of this public health study so far, 253 cases of esophageal adenocarcinoma and 191 cases of upper stomach (gastroesophageal junction) adenocarcinoma have been diagnosed among the study’s volunteers.  After analyzing the known risk factors (including obesity) for esophageal and gastroesophageal junction adenocarcinoma in this huge group of research study volunteers, obesity, by itself, was found to double the risk of developing this deadly form of cancer.  Similarly, obesity, alone, nearly quadrupled the risk of gastroesophageal junction adenocarcinoma.  Moreover, among study volunteers with normal body weight, but with increased fat in the abdominal area, esophageal adenocarcinoma was nearly two times more likely when compared to normal-weight adults without abdominal obesity.

The findings of this new study reinforce the conclusions of similar, earlier studies that I discuss in A Cancer Prevention Guide for the Human Race, and confirm that obesity, and especially obesity in the abdominal area, significantly increases the risk of these two formerly uncommon (and highly lethal) types of cancer.

At the present time, nearly two-thirds of the U.S. population is overweight or obese, and this still growing epidemic of increasing body weight shows no signs of slowing down.  As I discuss in my bestselling book, even conservative evidence-based estimates suggest that at least 15 percent of all cancer cases are directly linked to obesity, including several of the most dangerous forms of cancer.  If the incidence of obesity does indeed continue to rise from its already very high current level, obesity could, in time, overtake all other known modifiable risk factors for cancer.

If you are overweight or obese, please see your doctor about starting a sensible weight loss program, including healthy dieting and physical exercise.

 

For a groundbreaking overview of cancer risks, and evidence-based strategies to reduce your risk of developing cancer, order your copy of my bestselling book, “A Cancer Prevention Guide for the Human Race,” from AmazonBarnes & NobleBooks-A-MillionVroman’s Bookstore, and other fine bookstores!

Within one week of publication, A Cancer Prevention Guide for the Human Race was ranked #6 among all cancer-related books on the Amazon.com “Top 100 Bestseller’s List” for Kindle e-books. Within three months of publication, A Cancer Prevention Guide for the Human Race was the #1 book on the Amazon.comTop 100 New Book Releases in Cancer” list.




Disclaimer:  As always, my advice to readers is to seek the advice of your physician before making any significant changes in medications, diet, or level of physical activity


 

Dr. Wascher is an oncologic surgeon, professor of surgery, cancer researcher, oncology consultant, and a widely published author


 

I and the staff of Weekly Health Update would again like to take this opportunity to thank the more than 100,000 health-conscious people from around the world who visit this premier global health information website every month.  (More than 1.3 million pages of high-quality medical research findings were served to the worldwide audience of health-conscious people who visited Weekly Health Update in 2011!)  As always, we enjoy receiving your stimulating feedback and questions, and I will continue to try and personally answer as many of your inquiries as I possibly can.


 





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