| Moderate
physical activity, such as walking or biking, reduces the risk
of breast cancer by 20 percent, even when started later in life.
Researchers found that regular exercise lowered breast cancer
risk even among postmenopausal women and those at high risk
for the disease.
Exercise did not help women who were obese to reduce their
risk for breast cancer, however. Researchers suggest that
extra fatty tissue may promote the development of cancer and
say that exercise will help obese women reduce breast cancer
risk after their weight is normalized.
Journal
American Medical Association September 10, 2003
| 