Ninety Percent of Ovarian Eggs Used Up by 30

May be this has some thing to do with our present food habits ,over drugging,especially Gyn.drugs and stress?
Story:
Biological Clock Ticking: Most Ovarian Eggs Used Up by Age 30.
By the time a woman reaches 30, she’s lost 90 percent of her ovarian eggs for good, according to a new study, which suggests that the female “biological clock situation is worse than we thought,” says Elan Simckes, M.D., medical director and founder of The Fertility Partnership of St. Peter’s, MO.

The study, published by the University of St. Andrews and Edinburgh University in Scotland found that 95 percent of women have less than 12 percent of their ovarian egg reserve left by age 30 and only three percent by 40.
http://www.aolhealth.com/condition-center/pregnancy/womens-fertility-ovarian-eggs?icid=main|main|dl3|link1|http%3A%2F%2Fwww.aolhealth.com%2Fcondition-center%2Fpregnancy%2Fwomens-fertility-ovarian-eggs