—If you work nights, go straight to bed when you get home, Buxton advises. Avoid too much light along the way. Thorpy says wearing yellow- or orange-tinted sunglasses on the drive home can block short-wavelength "blue light" that triggers wakefulness.
—Let natural light help keep your biological sleep clock on schedule, advises Harvard's sleep-education Web site. For most people, sunlight in the morning is key. For the night shift, more bright light in the evening shifts people's internal clock, Buxton explains.
—For anyone, a sleep-inducing bedroom is one that's dark, quiet and cool. Avoid caffeine, alcohol and stressful situations near bedtime. Electronics right before bed aren't advised, either. Going to bed and waking up at the same time every day also helps.
EDITOR'S NOTE — Lauran Neergaard covers health and medical issues for The Associated Press in Washington.
Harvard sleep education: http://understandingsleep.org
NIH Guide to Healthy Sleep: http://www.nhlbi.nih.gov/health/public/sleep/healthy_sleep.htm
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