Longevity refers to the duration of an individual's life, specifically the length of time that a person or organism lives. In a broader context, it is often associated with living a long life while maintaining good health. The study of longevity involves examining factors that contribute to a long and healthy life, including genetics, lifestyle choices, diet, exercise, and medical advancements. Longevity is also a key area of interest in various scientific fields, such as gerontology (the study of aging) and biogerontology (the biological processes of aging), where researchers aim to understand how to extend the healthy lifespan of humans and other organisms.