11 Facts About Fitness

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1. The human body has 650 muscles.
2. The only exercise you should hold your breath for is underwater swimming.
3. The heart is the strongest muscle in the body.
4. Nearly 50% of all young people ages 12-21 are not vigorously active on a daily basis.
5. For every pound of muscle gained, the body burns 50 extra calories every day.
6.  Read More:  Facts About Fitness