Adopting a healthy lifestyle could prevent a huge number of cancer cases and possibly save tens of thousands of lives in the U.S, according to a study published today in the Journal of the American Medical Association.
Researchers from Massachusetts General Hospital and Harvard Medical School looked at 89,571 Caucasian women and 46,399 Caucasian men enrolled in two ongoing cohorts to see how much a healthy lifestyle could reduce cancer risk.
Of the people studied, 16,531 women and 11,731 men had a healthy lifestyle pattern and were determined to be low risk. These healthy patterns included moderate or no drinking, a BMI between 18.5 and 27.5, weekly physical activity that included at least 150 minutes of moderate intensity or 75 minutes of vigorous intensity, and either never having smoked or currently not being a smoker.
The authors then studied cancer rates among the high- and low-risk groups. They found that overall, 20 percent to 40 percent of carcinoma cases and about half of carcinoma deaths can be potentially prevented through lifestyle modification. Carcinomas form in the lining of certain tissues or organs and is the most common form of cancer.
The authors clarify that more study needs to be done to ensure these findings translate to other ethnic groups.
"These findings reinforce the predominate importance of lifestyle factors in determining cancer risk. Therefore, primary prevention should remain a priority for cancer control," the authors concluded in the study.- abcnews