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National Institute of General Medical Sciences, Biomedical Beat: “Turn Back Every Clock,” “Circadian Rhythms Fact Sheet.”
National Sleep Foundation: “What Are Some Circadian Rhythm Disorders?” “Circadian Rhythm and Your Body Clock,” “How to Get on a Sleep Schedule,” “How to Become a Morning Person,” “4 Tips to Maximize Your Circadian Sleep-Wake Rhythm,” “Is It Bad to Watch TV Right Before Bed?” “How Many Hours of Sleep Do You Need?” “Catching Up on Sleep,” “Improve Your Sleep on a Shift-Based Schedule,” “What Is Circadian Rhythm?” Napping.”
Harvard Medical School: “Individual Variation and the Genetics of Sleep,” “Napping May Not Be Such a No-No.”
Nature: “Circadian Rhythms: Of Owls, Larks, and Alarm Clocks.”
UCLA Health: “Circadian Rhythms,” “Sleep and Health.”
Science: “Why Late Nights Are Bad for Your Immune System.”
Cleveland Clinic: “Circadian Rhythm Disorders.”
Sleep Health Foundation: “Delayed Sleep Phase Syndrome (DSPS).”
Reviewed by Nayana Ambardekar, MD on November 14, 2017
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