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Science of Sleep: What is Sleep

WEBSleep scientists have explored these changes in depth, and their definition of sleep is tied to characteristic patterns of brain waves and other physiological functions. …

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URL: https://sleep.hms.harvard.edu/education-training/public-education/sleep-and-health-education-program/sleep-health-education-47

Why Sleep Matters: Benefits of Sleep Sleep Medicine

WEBIn studies of humans and other animals, they have discovered that sleep plays a critical role in immune function, metabolism, memory, learning, and other vital …

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About the Healthy Sleep Site Sleep Medicine

WEBThe Web site is one of the activities of the DSM’s Sleep and Health Education program. This effort, which aims to improve knowledge about sleep on the individual and societal …

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Science of Sleep: How is Sleep Regulated

WEBScience of Sleep: How is Sleep Regulated? Transitions between wakefulness and sleep are controlled and regulated by the brain, which also plays a key role in …

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Why Sleep Matters: Consequences of Sleep Deficiency

WEBIn the short term, a lack of adequate sleep can affect judgment, mood, ability to learn and retain information, and may increase the risk of serious accidents and …

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Overcoming Factors that Interfere with Sleep Sleep …

WEBAlthough there are many things that negatively impact sleep, there are nearly as many strategies and treatments available that can help. An important start in …

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Understanding Insomnia Sleep Medicine

WEBInsomnia is a common sleeping disorder that leads to negative daytime effects despite adequate opportunity to sleep. It is characterized by difficulty falling asleep, …

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Sleep and Health Sleep Medicine

WEBThe study results below show that reducing sleep by just two or three hours per night can have dramatic health consequences. Obesity—Several studies have linked insufficient …

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Risk Factors for Insomnia Sleep Medicine

WEBThe Takeaway. The major risk factors for insomnia are advancing age, family history of insomnia, female sex, lifestyle, and stress or worrying. Insomnia is a common …

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Symptoms of Insomnia Sleep Medicine

WEBInsomnia is a report of difficulty falling asleep, staying asleep at night, or waking up too early. It is associated with impairment in daytime functioning. Chronic …

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Getting the Sleep You Need: You and Your Biological Clock

WEBDivision of Sleep Medicine 221 Longwood Avenue Suite BL-438 Boston, MA 02115 (617) 732-4013

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Getting the Sleep You Need: When to Seek Treatment

WEBSleep specialists are trained to evaluate individuals for sleep disorders. If you are diagnosed with a sleep disorder, it is important to get treatment. Sleep disorders are …

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Assess Your Sleep Needs Sleep Medicine

WEBGenerally, sleep needs during a 24-hour period follow this pattern: Newborns (1 to 3 months)*. Infants (4 to 12 months) – 12 to 16 hours. Toddlers (1 to 2 years) – 11 …

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What Causes Insomnia Sleep Medicine

WEBSleep researchers and experts continue to investigate what leads to the development of insomnia. It is well-known that insomnia often occurs in the setting of …

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Why Sleep Matters: Historical and Cultural Perspectives of Sleep

WEBDr. Dennis Dean discusses how the light bulb has exposed the human system to light at times that would normally be dark, and the impact this has had on how long …

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Understanding the Results Sleep Medicine

WEBThe AHI is the number of apneas or hypopneas recorded during the study per hour of sleep. It is generally expressed as the number of events per hour. Based on …

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Sleep and Memory Sleep Medicine

WEBRecall is the last important step in learning, in which the brain accesses and utilizes stored information, often bringing memories back to mind. Dr. Robert Stickgold discusses the …

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Sleep and Mood Sleep Medicine

WEBSleep and mood are closely connected; poor or inadequate sleep can cause irritability and stress, while healthy sleep can enhance well-being. Chronic insomnia may …

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Epworth Sleepiness Scale Sleep Medicine

WEBThe Takeaway. The Epworth Sleepiness Scale can be used to assess daytime sleepiness. For other ways to identify problematic sleepiness, see Self …

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