The process of progressive deterioration in the normal structure and function of tissues is called :

Explanation

The process of progressive deterioration in the normal structure and function of tissues is called aging.Aging, also known as senescence, is the natural and inevitable process of growing older that occurs in all living organisms, including humans. It involves a series of biological, physiological, and psychological changes that take place over time. Aging is a complex and multifaceted phenomenon with both intrinsic (genetic) and extrinsic (environmental) factors influencing the rate and experience of aging.Biological aging is the gradual deterioration of bodily functions and structures that occurs with the passage of time. It is associated with changes at the cellular and molecular levels, including cellular senescence, DNA damage, and telomere shortening.Several theories have been proposed to explain the mechanisms of aging, including the genetic theory of aging, the free radical theory, the telomere shortening theory, and the mitochondrial theory. These theories provide different perspectives on the aging process.Aging is associated with various physical and cognitive changes. Common signs of aging may include wrinkles, gray hair, reduced muscle mass, decreased bone density, changes in vision and hearing, memory decline, and decreased metabolic rate.