- Reduces the risk of breast cancer. Women who breastfeed reduce their risk of developing breast cancer by as much as 25 percent. The reduction in cancer risk comes in proportion to the cumulative lifetime duration of breastfeeding. That is, the more months or years a mother breastfeeds, the lower her risk of breast cancer.
- Reduces the risk of uterine and ovarian cancer. One of the reasons for the cancer-fighting effects of breastfeeding is that estrogen levels are lower during lactation. It is thought that the less estrogen available to stimulate the lining of the uterus and perhaps breast tissue also, the less the risk of these tissues becoming cancerous.
- Lessens osteoporosis. Non-breastfeeding women have a four times greater chance of developing osteoporosis than breastfeeding women and are more likely to suffer from hip fractures in the post-menopausal years.