1. This occurs when your muscles contract to make your body move 2. The number ofhours recommended forteens to engage in various daily
physical activities
3. This refers to activities that are not too easy and not too hard
4. These activities producelarge increases in breathing or heart rate, such
as jogging, aerobic dance, or bicycling uphill
5. This shows various physical activities that you can do for a better and
healthy lifestyle​