JCJC Human Growth And Development Practice Test

Life expectancy is the average number of years a person born today is expected to live, based on current mortality patterns. It reflects the overall health and living conditions of a population. Genetics set some baseline health risks, but many factors shape how long people live: lifestyle choices such as diet, exercise, smoking, and alcohol use; access to quality healthcare and preventive services; socioeconomic status, which influences nutrition, housing, education, and stress; and the environment, including pollution and safety. Improvements in early-life health and medical care can raise the average, while disparities in any of these areas can lower it. Remember, life expectancy describes a population average and does not predict an individual’s lifespan, nor is it the maximum possible lifespan or something a person plans for themselves.