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What happens to your brain when you sleep?

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It’s basically naptime for the nerve cells in your brain as you dip into non-REM sleep. They do send out a few messages, but nothing much. But like so many other bodily functions, brain activity goes up during REM sleep, sometimes even more than during the day. Blood flow to your brain also goes up during REM sleep.

Your brain also uses your sleep cycles to consolidate memories. So staying up all night to cram for a test might be counterproductive.

SOURCES:

American Sleep Association: “What is Sleep?”

Harvard Medical School: “The Characteristics of Sleep.”

National Sleep Foundation: “What Happens When You Sleep?”

Institute of Medicine: “Sleep Disorders and Sleep Deprivation: An Unmet Public Health Problem.”

National Sleep Foundation: “Does Your Body Temperature Change While You Sleep?”

National Sleep Foundation: “The Physiology of Sleep – Thermoregulation & Sleep.”

National Sleep Foundation: “Exercise at This Time of Day for Optimal Sleep.”

University of Washington: “What is Sleep . . . and why do we do it?”

National Sleep Foundation: “The Physiology of Sleep – The Respiratory System.”

Dartmouth College: “Chapter 53: The pharynx and larynx.”

Lung: “Cough and sleep.”

National Heart, Lung, and Blood Institute: “What Is Sleep Apnea?”

American Chemical Society: “So Tired in the Morning... The Science of Sleep.”

Reviewed by Nayana Ambardekar on March 06, 2019

SOURCES:

American Sleep Association: “What is Sleep?”

Harvard Medical School: “The Characteristics of Sleep.”

National Sleep Foundation: “What Happens When You Sleep?”

Institute of Medicine: “Sleep Disorders and Sleep Deprivation: An Unmet Public Health Problem.”

National Sleep Foundation: “Does Your Body Temperature Change While You Sleep?”

National Sleep Foundation: “The Physiology of Sleep – Thermoregulation & Sleep.”

National Sleep Foundation: “Exercise at This Time of Day for Optimal Sleep.”

University of Washington: “What is Sleep . . . and why do we do it?”

National Sleep Foundation: “The Physiology of Sleep – The Respiratory System.”

Dartmouth College: “Chapter 53: The pharynx and larynx.”

Lung: “Cough and sleep.”

National Heart, Lung, and Blood Institute: “What Is Sleep Apnea?”

American Chemical Society: “So Tired in the Morning... The Science of Sleep.”

Reviewed by Nayana Ambardekar on March 06, 2019

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What should you know about sleeping positions?

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