Fifteen Minutes Exercise per Day Improves Life Expectancy

 Improving life expectancy: you might not have to exercise all day to gain some benefit.

Researchers in Taiwan have found that exercising for as little as 15 minutes per day, can increase life expectancy by three years.

A total of 416 000 individuals took part in the study between 1996 and 2008. They were categorised into five bands according to their activity levels: inactive, or low, medium, high, very high activity. Compared to the inactive group, those in the low activity group (15 minutes exercise per day) showed 14% reduced mortality and a three year longer life expectancy. Every additional 15 minutes exercise per day, was associated with a further 4% reduction in mortality and a 1% reduction in cancer.

(Minimum Amount of Physical Activity for Reduced Mortality and Extended Life Expectancy: A Prospective Cohort Study. The Lancet, online pub, 16 August 2011.)