Why Do Humans Have Grandparents?
Many of us treasure our grandparents , but it turns out they ’re so treasured that humans have evolved gene stochastic variable that help protect them against certain age - related diseases , like Alzheimer ’s . By keep the older generation healthier , it not only reduces their gist on others but also allows them to keep contributing to society . “ When elderly people knuckle under to dementia , the residential district not only lose crucial sources of wisdom , compile knowledge and culture , but elder with even mild cognitive decay who have influential positions can harm their social groups by making flawed decisions , ” co - lead researcher Pascal Gagneux from the University of California , San Diego , explicate in astatement ....