Regular physical activity can help keep your thinking, learning, and judgment skills sharp as you age. It can also reduce your risk of depression and may help you sleep better. Research has shown that doing aerobic or a mix of aerobic and muscle-strengthening activities 3 to 5 times a week for 30 to 60 minutes can give you these benefits. Some scientific evidence has also shown that even lower levels of physical activity can be beneficial.

Disponível em: <www.cdc.gov/physicalactivity/everyone/health/index.html>. Acesso em: 12 out. 2012.

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