Have you ever wonder why woman tends to live longer than man? Read the below abstract:

Studying people who live 100 years and more leads Harvard researchers to conclude that menopause is a major determinant of the life spans of both women and men.

Women’s life span depends on the balance of two forces, according to Thomas Perls, a geriatrician at Harvard Medical School. One is the evolutionary drive to pass on her genes, the other is the need to stay healthy enough to rear as many children as possible. “Menopause draws the line between the two,” Perls says. It protects older women from the risks of bearing children late in life, and lets them live long enough to take care of their children and grandchildren.

As for men, Perls believes “their purpose is simply to carry genes that ensure longevity and pass them on to their daughters. Thus, female longevity becomes the force that determines the natural life span of both men and women.”

In my own opinion, woman tends to live longer because they are not easily agitated. (Is that true?) Man, on nature are the other way round. Surveys had found out that majority of the man in the world rides motorbikes and thus most man are involved in deadly accidents. Also, the percentage of man in the millitary forces are more then that of woman, so, its more possible for man to died in war than woman?