Future women will be lower and heavier

A US study shows that women in the future will be lower, heavier but healthier than women today.

In the context of modern medicine to help people overcome many incurable diseases and improve the quality of life, many scientists believe that the natural selection process does not affect humanity anymore. So beautiful, healthy women and good genes will increasingly dominate.

But Professor Stephen Stearns - an evolutionary biologist at Yale University (USA), affirmed: ' That is the wrong view .'

Artwork by irishhealth.com.

According to Stearns, the natural selection process still favor women who have favorable qualities for childbirth. So in the future, those who are easily successful in childbirth will account for the majority of women.

To demonstrate, Stearns and his colleagues analyzed medical records of 14,000 people in the city of Framingham, Massachusetts, USA. These people have been the subject of a cardiovascular study since 1948. Many of them belong to three generations in a family.

New Zealand said experts focused on 2,238 women who entered menopause in 1948. They measured height, weight, cholesterol, blood pressure and many other features of this group to determine whether Is there any relationship between the number of children with the above indicators or not?

The results showed that the lower and heavier the women, the more likely it is to have many children. People with lower blood pressure and lower cholesterol levels also tend to have more babies than people with high blood pressure and high cholesterol.

Another surprising thing is: Women who give birth early or enter menopause are also more likely to have more children.

These trends are passed from mother to daughter. Therefore, most of the girls of 2,238 women also have many children.

Sterns' group did not find out why height, weight, blood pressure, cholesterol levels, when the first child was born, the time of menopause was linked to the likelihood of success in childbirth. But they argue that genetic factors play the most important role in women's reproductive success, not the environment or living circumstances.

Sterns' study is published in the October issue of the Proceedings of the National Academy of Sciences.