Plump little more female fertility

According to the British, "New Scientist" reported, recently, new study shows that women will become the next build more small, more full, have a healthier heart and longer reproductive cycles. The changes effectively predict that the human being is still in evolution.

 
With the upgrading of medical technology to make the gradual extension of human life, which make people think the natural evolution of mankind will no longer have an effect on the human body, we humans are likely to have stopped evolving. Yale University evolutionary biologist Stephen - Stearns (Stephen Stearns) said: "The fact that it is completely wrong! Although a variety of medical treatment no longer makes the part of modern life depends on the human genome, but the human reproductive conditions there are still different. crux of the issue is whether women are able to birth more offspring, their genes are inherited. "

 
For in-depth study, Stearns and his colleagues turned to 弗兰明汉姆 Heart Research Center, the Massachusetts research center documented 弗兰明汉姆 residents of the town of 14,000 medical records since 1948, during across the three generations.

 
The team studied 2238 has passed the menopause, the end of the female reproductive cycle, they counted the women's height, weight, blood pressure, cholesterol, and how many children they had given birth and other characteristics. They carried out the statistics to prove how strong natural selection to form some of the characteristics of mankind.

 
The results show that short stature is more and more full of women is relatively high, slim women are more likely than birth more children. Low blood pressure and cholesterol levels with women more likely to birth more children, while they bear their first child sooner, later entering the time of menopause. Concern is that they can be inherited these features to his daughter, they can also be more children.

 
If the genetic characteristics of 10-generation children, Stearns calculated that the 2409 statistics of the female offspring of women will increase 2 cm in height, weight will be increased by 1 kg. Their first child in time 5 months earlier than their predecessors, entered the time of menopause 10 months later.