If a person spends 2.5 hours a week for sports (i.e., about 20 minutes a day), he will live longer than those who go through life with laziness, with all other conditions being equal. This observation is made by Ian Janssen, a scientist at Queen’s University in Ontario.
These findings were made by Janssen and his colleagues after analyzing the data obtained in the course of such researches as National Health and Nutrition Examination Survey, National Health Interview Study mortality linkage, and US Life Tables. The studies compared life expectancy of adults with different levels of activity. An active person spared at least 2.5 hours a week for sports. Such a regime allowed men to live additional 2.4 years of life, and women prolonged their life expectancy for approximately 3 years.