The Wash­ing ton Post has an inter­est­ing info­graphic on How Our Bod­ies Age (And What You Can Do About It).

Aging is the nat­ural wear and tear of the body’s com­po­nent parts. It’s inevitable, and end­lessly intrigu­ing. While many age-related changes can­not be pre­vented, a lifestyle that includes exer­cise and a well-balanced diet will slow or min­i­mize many prob­lems related to aging.