How Much Sleep Do I Need?

Source: CDC, Washington, DC, USA.
Date: February 22, 2012

Sleep guidelines from the National Heart, Lung, and Blood Institute below have noted that sleep changes as we age, although there is no 'magic number' as individual sleep needs vary.

For further information and a more comprehensive discussion of recommended hours of sleep for different age groups—please see the National Heart, Lung, and Blood Institute .

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