Long life thanks to her

People championed longevity compared to other primates, and the new research results appreciate the role of grandparents in this happy reality .

The new discovery, published in the Proceedings of the Royal Society B, supported the hypothesis of the grandmother's role in human life. This hypothesis is to explain why women, unlike females, in primates and other mammals, live longer and have longer reproductive periods. According to the above hypothesis, perhaps because of the grandmothers who take care of him, allow his children to have the opportunity and time to introduce more descendants. Lucky families still have grandma when picking up new members, so they also have the advantage of genes, so their lifespan is prolonged through natural selection process.

New research has recognized the important role of grandparents in the family since ancient times

Researcher Kristen Hawkes, an anthropologist at the University of Utah (USA), is particularly interested in the hypothesis while observing the Hadza group who still have a habit of hunting and gathering. in Tanzania. In that society, Mr. Hawkes said that menopausal women still work hard.'The huge economic productivity of older women surprised us , ' said Hawkes. Specifically, they often undertake heavy work such as uprooting roots into rocky soil. Statistics show that the health and success of a child are related to the work of the mother, until they have me. After that, the adult's health depends on her grandmother.

Hawkes is not the only expert to discover the important role of a grandmother in the family. Research results in 2008 published in Evolution and Human Behavior revealed that women, especially grandmother, helped improve a child's ability to survive. Parents who remain in love with their children will be more likely to pick up their children early, according to a report from the University of East Anglia (UK), published in the Proceedings of the Royal Society B. However, no one has ever provided them. Evidence suggests that grandmothers may be the motivators for the evolution of the evolution of primates.

Females in humans and other primates almost lose their fertility at a time, about 45 years old. Chimpanzees, gorillas and other primates often die before their fertility disappears completely. In the case of people, women still maintain high productivity even after entering menopause. To assess the role on the hypothesis that grandmother helped increase human life, expert Hawkes and colleagues started a new algorithm and loaded data of about 1,000 life-long individuals like primates like gorillas, chimpanzees, with life lasting about 20 years. When adding the element of grandmother, defined as women over 45, taking care of great-grandchildren, community life expectancy is doubled compared to the initial starting point.

According to the expert team, with the care of her grandmother, the grandmother lifted the pressure of raising children to weigh heavily on her mother, allowing her family to have more grandchildren and the mother's life expectancy was also prolonged.