Definition of body clock
: the internal mechanisms that schedule periodic bodily functions and activities
—usually not used technically
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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 of body clock from the Web
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The sunlight will program your body clock and help regularize your sleep and wake rhythm.
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According to Krebs, holding the two pressure points at the same time resets the internal body clock, easing the effects of jet lag.
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Melatonin secretion is usually low during the day, and then rises in the evening, causing the body clock to prepare for sleep.
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Other than readjusting his body clock the 15 hours from Korean Standard Time to Central, Butler was ready and eager to go for the Admirals’ weekend series.
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The lack of sleep and my body clock being all over the place didn’t really hit me until we were done in Antarctica.
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Nobody gets to stop his body clock in his prime and not go into subtle, then marked, decline.
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Skip the In-Flight Movie: Experts suggest not watching television right before bed because screens emit blue-spectrum light that messes with your body clock.
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Sometimes, the body clock gets reprogrammed due to behavioral decisions, like regularly waking at weird hours to binge-watch Ozark.
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.
First Known Use of body clock
1916
BODY CLOCK Defined for English Language Learners
body clock
Definition of body clock for English Language Learners
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: a system in the body that controls when you need to sleep, eat, etc.
Medical Dictionary
noun
\
-ˈkläk
\
medical Definition of body clock
: the internal mechanisms that schedule bodily functions and activities
—not usually used technically
Seen and Heard
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