At the biological level, aging results from the impact of the accumulation of a wide variety of molecularand cellular damage. This leads to a gradual decrease in physical and mental capacity, a growing risk of disease, and, ultimately, death. But these changes are neither linear nor consistent, and they are only loosely associated with a person’s age in years.
While some 70 year-olds enjoy excellent health and functioning, other 70 year-olds are frail and require significant help from others. Beyond biological changes, aging is associated with other life transitions such as retirement, relocation to more appropriate housing, and friend’s and partner’s death. In developing a public-health response to aging, it is essential not just to consider approaches that improve the losses associated with older age but also those that may reinforce recovery, adaptation, and psychosocial growth. Know How Beauty video.