'Social Jet Lag' Disrupts Sleep

'Social Jet Lag' Disrupts Sleep

Even if you didn't travel long distances during the holiday season, you may return to work feeling as if you did.

British researchers use the term "social jet lag" to describe the mental and physical weariness people experience after days or weeks of irregular sleeping, eating and stress that experts say is similar to the travel jet lag that affects people who travel across time zones.

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