Theories of Aging

Theories of aging explore why we grow older and experience changes over time. There are several key ideas: 1. **Wear and Tear Theory** suggests that our bodies wear out from use and exposure over time. 2. **Genetic Theory** proposes that our lifespan is determined by our genetic makeup. 3. **Cellular Senescence** focuses on how cells lose the ability to divide and function with age. 4. **Free Radical Theory** indicates that damage from unstable molecules (free radicals) accumulates and affects our cells. These theories help researchers understand aging and develop ways to promote healthier lives as we age.