Women who stay highly active throughout life are less likely to develop ovarian cancer, according to a new study.
Researchers studied more than 2,100 women and found that those who exercised more than 6 hours per week were 27% less likely to develop ovarian cancer than women who exercised less than 1 hour each week.
High activity levels protected women of all ages. However, less than one quarter of the women exercised at that level.
Exercise has previously been linked to a lower risk of breast cancer
Highly active women in this study consistently showed lower ovarian cancer risk across all age groups, from age 20 to 69.
The researchers speculate that exercise may cut cancer risk by one of the following mechanisms:
Hormonal Effects of exercise
Exercise could be simply be a marker for a generally healthful lifestyle.
Obstetrics and Gynecology October 2000; 96 :609-14
Thanks to Dr. Joseph Mercola (DR@Mercola.com) for locating this article.
JNCI, June 20, 2001
Int'l J Cancer, 6/03
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