lunes, 30 de julio de 2012

Physical Activity for Everyone: Guidelines: Adults | DNPAO | CDC

full-text:
Physical Activity for Everyone: Guidelines: Adults | DNPAO | CDC

How much physical activity do adults need?

Physical activity is anything that gets your body moving. According to the 2008 Physical Activity Guidelines for Americans, you need to do two types of physical activity each week to improve your health–aerobic and muscle-strengthening.

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