1.   After the second month of pregnancy, estriol levels steadily increase as the placenta takes over estrogen production.

2.   Hot flashes are associated with reduced estrogen production and the way the body regulates temperature.

3.   Although the cause of osteoporosis is unknown, the rapid drop in estrogen production that occurs during menopause is a definite risk factor.

4.   Anastrazole blocks a vital enzyme in estrogen production, while tamoxifen prevents estrogen from binding to breast cells.

5.   Aromatase is a vital enzyme in estrogen production, converting androgens into estrogens.

6.   Estrogen production and bone density return when they ease training or leave the sport.

7.   High levels of this hormone would shut down estrogen production by the ovaries, dramatically lowering the risk of breast cancer, Pike believes.

8.   Lupron, for example, can shrink endometrial growths by temporarily interrupting estrogen production.

9.   Previous research indicated that smoking may actually protect against breast cancer, because some breast cancers are fueled by estrogen, and smoking can decrease estrogen production.

10.   The rapid drop in estrogen production that occurs during menopause is a risk factor forosteoporosis, a bone-thinning disease that often results in fractures.