physical exercise may increase life expectancy. people who participate in moderate to high levels of physical exercise have a lower mortality rate compared to individuals who are not physically active. moderate levels of exercise have been correlated with preventing aging and improving quality of life by reducing inflammatory potential. the majority of the benefits from exercise are achieved with around 3500 metabolic equivalent (met) minutes per week. for example, climbing stairs 10 minutes, vacuuming 15 minutes, gardening 20 minutes, running 20 minutes, and walking or bicycling for 25 minutes on a daily basis would "together" achieve about 3000 met minutes a week.