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Articles related to focusing on healthy aging, prevention, mobility, cognition, nutrition, independence, and caregiving support.

3 min

What are the three biological theories of aging?

According to the American Federation for Aging Research, scientists have proposed over 300 different theories to explain the aging process, yet most can be categorized into a few main groups. To better understand the fundamental biology of aging, it is helpful to examine the three major biological theories that attempt to explain why we experience a progressive decline in function over time: programmed, damage or error, and evolutionary theories.

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