Human Longevity May Have Reached its Upper Limit

For most of the 20th century, each successive decade added about three extra years to people’s average lifespan in developed countries. For a person born at the turn of the 21st century, these increm… [+6302 chars]

Human Longevity May Have Reached its Upper Limit

Human Longevity May Have Reached its Upper Limit

Human Longevity May Have Reached its Upper Limit

Human Longevity May Have Reached its Upper Limit

Human Longevity May Have Reached its Upper Limit