We all know someone “old.” But what does “old age” mean, and how much is known about the aging process? The following questions are an excerpt from the National Institute on Aging’s “Aging IQ Test.” ...

Geneticist Anne Brunet explores what aging really is, how lifestyle choices might influence longevity, and the promising ...

Geroscience examines the underlying biology of aging to delay chronic diseases and extend the healthy years of human life.