Health

Age 40 is when busy Americans get the least sleep

A graph of how long Americans sleep forms a U-shaped pattern across our lives, with age 40 being the low point and hours of sleep starting to creep back up about age 50, Medical College of Georgia investigators report.

Health

Who's smoking now, and why it matters

Suppose you were told that there is something responsible for nearly 1 of every 5 deaths of Americans, and that it is completely avoidable. Would you believe – today – that "something" is cigarette smoking?

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