How might physical activity reduce endometrial cancer risk?
Studies also suggest that women who are physically active have a 30 percent to 40 percent reduced risk of endometrial cancer (21, 24-26), with the greatest reduction in risk among those who are most active (25, 26). The possible association between physical activity and endometrial cancer is based on a limited number of studies, some of which indicate that inactive women have higher rates of endometrial cancer compared to physically active women. Changes in body mass and alterations in level and metabolism of sex hormones, such as estrogen, are the major biological mechanisms thought to explain the association between physical activity and endometrial cancer (21). A few studies have examined whether the effect of physical activity varies according to the weight of the woman, but the results have been inconsistent. How might physical activity reduce lung cancer risk? It is possible that individuals who are physically active have a 30 percent to 40 percent reduced risk of developing lung
