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Irregular hours for work and sleep, particularly when they do not sync up with one's body clock, may contribute to devel...

Railroaders have difficult schedules. They work hard to try to balance family life and work....

Your body clock also directs manual dexterity, ups and down in reaction time, and the the rise and fall of body temperat...

You will feel better and function better if you can work and sleep at times of day the body naturally prefers for these ...

Caffeine stimulates both brain and body. It can improve concentration and increase alertness. How do you get the biggest...

Robert Stickgold, PhD, of Harvard, tells how sleep helps you learn facts and remember them....

If you work an on-call, unpredictable schedule, you frequently go to bed and get up at different times. Even if you work a fixed schedule, you m...

If you work an on-call, unpredictable schedule, you frequently go to bed and get up at different times. Even if you work a fixed schedule, you m...