Strictly speaking, there are countless factors affecting human life, and it is impossible to accurately calculate the life of a person through such a simple questionnaire. But different factors have different effects on life. We ignore those factors that have little influence and retain some crucial factors. Such calculations, although not 100% accurate, are still true. The factors we consider in our calculations play a decisive role in the life of the human body:
Tester basic indicators, personality characteristics, family environment, work status, living habits, living environment, physical status, family inheritance and so on. These factors have an independent effect on the life span of the human body, and at the same time, these different factors also affect each other. For example, the effect of human cholesterol levels on their longevity changes with age; in different regions, body obesity rates (BMI) have different criteria.
Therefore, according to the life expectancy of a person in 80 years, it can be estimated that there are about 2500000000 seconds in a lifetime.