body clock


Definition of body clock

: the internal mechanisms that schedule periodic bodily functions and activities usually not used technically

Examples of body clock in a Sentence

It takes a while for my body clock to get adjusted when I fly from New York to London.

Recent Examples on the Web

Walnuts are one of the best food sources for melatonin, a hormone that helps regulate the body clock for a better night's sleep. Woman's Day Kitchen, Woman's Day, "Pear & Walnut Salad," 21 Dec. 2018 From inside-out hydration to keeping one's body clock in check, here is an array of wellness-minded experts weigh in on how to land looking—and feeling!—totally refreshed. Lauren Valenti, Vogue, "How to Take a Long Haul Flight—and Land Looking Totally Refreshed," 23 Aug. 2018 Changes are already happening, such as delaying dinner on the evening departure from Perth to begin moving body clocks to London time. Scott Mccartney, WSJ, "The Science Behind the World’s Longest Flights," 15 Aug. 2018 From a physiological standpoint, sleep quality is better in a darker environment and the morning daylight helps our body clocks run on time (and thus enhances sleep quality), Zee says. NBC News, "7 ways to actually get to bed an hour earlier," 5 June 2017 Midway through the second half, the Wolverines had a 40-30 lead, as the clock struck midnight back in Detroit – that’s their body clocks. Jeff Seidel, Detroit Free Press, "Michigan basketball ends wait, wins ugly game with beautiful defense," 16 Mar. 2018 Have the genes that control our internal body clocks (there are trillions of clocks at work all at once, said one researcher who spoke to STAT) gone haywire, ramping up or tamping down in weird ways? Megha Satyanarayana, STAT, "Stubborn genes: New research looks at how our bodies respond (or don’t) to night shift work," 7 May 2018 Kickoff is at the awkward time of 10 a.m. on the body clocks of Tijuana’s players. Mark Zeigler,, "Cinderella Xolos head to second semifinal leg at Toluca with lead," 12 May 2018 The company says its regimen of sunset and blue sky exposure is like the system used to help astronauts in space keep their body clocks in sync. Stephanie Rosenbloom, New York Times, "Tools for Sleeping Well While Traveling," 30 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'body clock.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of body clock

1916, in the meaning defined above

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Time Traveler for body clock

The first known use of body clock was in 1916

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More Definitions for body clock

body clock


English Language Learners Definition of body clock

: a system in the body that controls when you need to sleep, eat, etc.

body clock

\ -ˈkläk How to pronounce body clock (audio) \

Medical Definition of body clock

: the internal mechanisms that schedule bodily functions and activities not usually used technically

Comments on body clock

What made you want to look up body clock? Please tell us where you read or heard it (including the quote, if possible).


to affect and impair by alcohol or a drug

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