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Study: Just 15 minutes of exercise could lengthen lifespan

Don't have a free minute in the day to work out? What if just 15 free minutes could actually help you live longer?

About 15 minutes of exercise each day could add three years to your life. That's according to a study released by The Lancet, which also says those 15 minutes could decrease your risk of death by 14 percent.

A group of researchers in Taiwan analyzed 400,000 people participating in a medical screening between 1996 and 2008. Those people were then classified into five levels of activity: inactive, low, medium, high, or very high. Researchers calculated mortality risks and life expectancy for each group. Here's what they found:

Compared with individuals in the inactive group, those in the low-volume activity group, who exercised for an average of 92 min per week or 15 min a day, had a 14 percent reduced risk of all-cause mortality and had a three year longer life expectancy. Every additional 15 min of daily exercise beyond the minimum amount of 15 min a day further reduced all-cause mortality by four percent and all-cancer mortality by one percent. These benefits were applicable to all age groups and both sexes, and to those with cardiovascular disease risks. Individuals who were inactive had a 17 percent increased risk of mortality compared with individuals in the low-volume group.

While the more exercise you get, the better, as little as 15 minutes could have a major impact on your health. It takes more time than that to drive around looking for the closest parking spot!

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