You have a lot to teach your grandkids, and that might explain menopause

What do we all have in common? Surprisingly, the answer is menopause. But scientists still haven't quite figured out why this phenomenon exists. After all, if the purpose of evolution is to make sure that we most effectively pass on our genes, then why would women stop reproducing after a certain age? A study published on Thursday in PLOS Computational Biology may offer some insight into the evolution of menopause in humans.