sleep-wake cycle
Americannoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It controls the 24-hour sleep-wake cycle and helps regulate key functions such as hormone release, digestion, and body temperature.
From Science Daily ● Jan. 3, 2026
Lastly, melatonin is involved in biological rhythms, particularly circadian rhythms such as the sleep-wake cycle and eating habits.
From Textbooks ● Jun. 9, 2022
Studies prove that light suppresses melatonin, the chemical released by the pineal gland that regulates humans' sleep-wake cycle — also known as our Circadian rhythm.
From Salon ● Mar. 1, 2022
"Carbohydrates can raise your blood sugar, which has a therapeutic sleeping effect. Tryptophan is the amino acid that leads to serotonin production. Serotonin can be converted into more melatonin, which promotes a healthy sleep-wake cycle."
From Fox News ● Feb. 27, 2022
Even though they don't sleep, many plants have "clock genes" similar to those that direct the sleep-wake cycle in animals.
From Washington Post ● Aug. 5, 2016
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
