Women aged 30 decline fertility

On average, at the age of 30, the ovaries of women are only 12% (equal to one-eighth) of the original eggs.

By age 40, the situation was even worse, with only 3% of the 2 million eggs left, a study has just revealed.

Only about 450 of those 2 million eggs will actually ripen and fall during a woman's life.

Dr Tom Kelsey, from the University of St Andrews (UK), said: "A lot of women are waiting to be promoted or waiting for a suitable guy. They often don't realize that the ovaries have deteriorated. how fast after age 35. Every year, you will lose a large part of your egg store. "

"In fact, a lot of people start menopause in the middle or late 40s," he added to DailyMail.

Previously, studies have shown that the rapid decline of the ovary - and consequently the fertility of the sisters - when entering the age of 35 onwards.

But the recent work is the first study to monitor the whole process, from before the birth of a girl, until the end of her child care period, not just stop to learn a specific age group. as before.

Dr. Kelsey counted the eggs in the ovaries of 325 women of different ages. Information is then loaded into a computer program to find out the process of decline over time.