Life Expectancy

Life expectancy is a statistical measure that estimates the average number of years a person can expect to live, based on the age-specific mortality rates prevailing at a given time. It is often calculated from birth but can also be measured for specific age groups. Life expectancy is used as an important indicator in public health and demographic studies, reflecting the overall health and longevity of a population. Factors influencing life expectancy include healthcare access, lifestyle choices, socioeconomic status, environmental conditions, and advancements in medical technology. It is commonly expressed as a single number, representing the average lifespan, and is often compared across different populations or countries to highlight disparities in health and quality of life.