Increases in life span are one of the greatest success stories of modern society. Yet, while most of us can expect to live longer, we are spending more years in ill health. Reducing this period of ill health at the end of life is the main aim of a group of scientists known as biogerontologists.
By studying aging in animals, including fruit flies, worms, and rodents, biogerontologists have identified biological phenomena involved with aging that all these organisms share. And some of these biological processes may also regulate aging in humans.
Scientists attempting to understand and improve the aging process have identified many molecules that appear to improve aging in these animals (although evidence in humans remains scant). These molecules include compounds found in grapes, apples, and even bacteria.
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