High levels of leisure-time physical activity were associated with a lower risk of 13 types of cancer when compared to people with low levels of leisure-time physical activity according to a study done by researchers at the U.S. National Cancer Institute.

The 13 cancers associated with a lower risk were:

• 10% lower risk of breast cancer
• 13% lower risk of bladder cancer
• 13% lower risk of rectal cancer
• 15% lower risk of head and neck cancer
• 16% lower risk of colon cancer
• 17% lower risk of multiple myeloma
• 20% lower risk of myeloid leukemia
• 21% lower risk of endometrial cancer
• 22% lower risk of gastric cardia
• 23% lower risk of kidney cancer
• 26% lower risk of lung cancer
• 27% lower risk of liver cancer
• 42% lower risk of esophageal cancer

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“Being overweight for a longer duration during adulthood significantly increased the incidence of all obesity-related cancers by 7% (for every ten-year increase in adulthood overweight duration), of postmenopausal breast cancer by 5%, and of endometrial cancer by 17%” according to a new study which followed 73,913 women for an average of 12.6 years.

Comment: I would not worry about a 7% increase.

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Obese women (BMI of 30 or more) have a 131% greater lifetime risk of uterine cancer / endometrial cancer (2.3 times the risk) than healthy weight women according to Cancer Research UK .

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The one-fourth of people eating a diet with the highest glycemic index or highest glycemic load were 26 percent more likely to develop colorectal cancer compared to the one-fourth eating a diet with the lowest glycemic load. This according to an analysis of 39 studies. Read the entire article | Email this article

Obesity is involved in 30 percent of cases of endometrial cancer notes the report Storing Up Problems: The Medical Case for a Slimmer Nation by the Royal College of Physicians. Read the entire article | Email this article

A difference of about 60 pounds increases the risk of endometrial cancer 2.9-fold in women according to a study from the University of Oxford in Oxford, England. Read the entire article | Email this article

Among countries in the European Union, 3.4 percent of all cancers in men and 6.4 percent of all cancer in women are attributable to overweight and obesity according to a paper published in the British Medical Journal. Read the entire article | Email this article

Obesity triples the risk of endometrial cancer according to the U.S. NIH's Obesity Guidelines (p. 18). Read the entire article | Email this article

Type II diabetes and chronically elevated levels of insulin are associated with an increased risk of cancers of the colon, breast, pancreas, kidney, and endometrium. Read the entire article | Email this article

Being overweight or obese may account for 23 percent of female cases of endometrial cancer in the U.S.. Read the entire article | Email this article

Being overweight increases the risk of endometrial cancer by 100 percent, while being obese increases the risk 250 percent. Read the entire article | Email this article

Obesity increases the risk of endometrial cancer. The incidence of emdometrial cancer is most common in developed countries and varies 25-fold around the world. Read the entire article | Email this article