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Sitting linked to cancers

More than 90,000 new cancer cases a year in the United States could be due to physical inactivity and prolonged periods of sitting, a new analysis shows.


Nanci Hellmich, Sun-Times, Nov 3 , 2011

More than 90,000 new cancer cases a year in the United States could be due to physical inactivity and prolonged periods of sitting, a new analysis shows.

The research cites about 49,000 cases of breast cancer and 43,000 of colon cancer.

"This gives us some idea of the cancers we could prevent by getting people to be more active," says epidemiologist Christine Friedenreich.

"This is a conservative estimate. The more physical activity you do, the lower your risk of these cancers."

Experts have known for years that physical activity decreases the risk of chronic diseases including cancer, heart disease, diabetes and obesity, Friedenreich says, but the new data give estimates on the number of cases that might be prevented if people were more physically active.

"A brisk daily walk of at least 30 minutes could lower a person's risk over time for breast cancer and colon cancer," says dietitian Alice Bender.

Gannett News Service

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