Aging

Description of aging differs between behavioral scientists and biologists. Biologists observe aging as reflecting the sum of multiple and typical biological decrements occurring after sexual maturation; behavioral scientists observation it as reflecting usual and expected changes happening in genetically representative organisms advancing through the life cycle under normal environmental circumstances. It is hard to define normal aging, since many changes experiential in older adults and previously perceived as concomitants of normal aging are now familiar as effects of disease in later life. The behavioral science view permits for incremental as well as decremental changes with aging. Senescence is not for all time associated with aging; it is analysis as the rising susceptibility or decreasing capacity of an organism to uphold homeostasis as it progresses through its life span. Gerontology refers to the learning of aging. Geriatrics refers to the clinical science that is concerned with health and sickness in the elderly.