Why do we age?

The process of aging is a complex biological phenomenon influenced by genetic, environmental, and cellular factors. While the exact mechanisms of aging are still being studied, several key contributors to aging have been identified: Genetic Factors: Genetic factors play a significant role in determining an individual’s lifespan and susceptibility to age-related diseases. Genes involved in DNA repair, cell maintenance, and longevity have been studied for their impact on aging. Cellular Aging: Cellular processes such as telomere shortening, mitochondrial dysfunction, and the accumulation of cellular damage and mutations can contribute to aging. Telomeres, the protective caps on the ends of chromosomes, shorten with each cell division and are associated with cellular senescence. Environmental Factors: Lifestyle and environmental factors, including diet, exercise, exposure to toxins, and stress, can influence the rate of aging and the development of age-related diseases. These factors can affect cellular and molecular processes that contribute to aging. Hormonal Changes: Changes in hormonal regulation, such as declines in growth hormone and sex hormones with age, can impact various aspects of aging, including muscle mass, bone density, and metabolism. Inflammation and Oxidative Stress: Chronic inflammation and oxidative stress can accelerate aging processes and contribute to age-related diseases. These factors can lead to tissue damage and dysfunction.