What Does Life Expectancy Mean?
Life expectancy is an average estimate of how long people may live based on data. It does not predict exactly what will happen to one person. For example, the CDC reported that U.S. life expectancy at birth was 79.0 years in 2024, with 81.4 years for females and 76.5 years for males.
Those numbers are population averages. Your personal outlook may be different depending on your health, habits, genetics, environment, and medical care. A life expectancy test tries to make that broad number more personal by using your answers.