A great understanding of a woman’s fertility is beginning to reveal why 30 is a point where women feel their biological clocks ticking. The study, a partnership between the Universities of Edinburgh and St Andrews, revealed a better estimate of the number of eggs a woman carries in her ovaries from the point at which she’s conceived to the point at which she goes through menopause. The research marks a precedent in the scientific community, it’s the first time that the human ovarian reserve has ever been followed and correctly catalogued from birth to around age 50 when menopause begins. As a result previously standing theories that the human females eggs were limited to a certain number that gradually declined as she aged have been cemented.
The data was based on British, European and American information on the subject. Apparently a woman’s ovarian reserve peaks at about 20 weeks after conception and gradually declines as she ages and approaches menopause. While previous studies tracked the decline of a woman’s reserve until menopause none had determined information from conception. Based on this research data it has been established that in 95% of women only 12% of all eggs created still remain by the time she reaches the age of 30 and only 3% remain at the age of 40. These findings could have a major effect on fertility treatments and understanding of the way a woman’s body begins to become less fertile as she ages.