internal clock
noun
1
: a system in the body that controls when a person needs to sleep, eat, etc.
The long trip upset my internal clock and I had a hard time getting to sleep.
2
: a clock or timing device that is inside a computer
Examples of internal clock in a Sentence
Recent Examples on the Web
Your circadian rhythm—the body's internal clock—influences digestion, metabolism, and sleep quality.
—
Lauren Panoff, Mph, Rd, Verywell Health, 28 Feb. 2025
Circadian rhythms and health At the center of the connection between sleep and mental health lies circadian rhythms: your body’s internal clock.
—Mackenzie Gamble, The Conversation, 10 Feb. 2025
Have no fear, another option to lessen the impact of this change on your body’s circadian rhythm (the body’s internal clock controlling our sleep and wake cycles) is to simply set your clocks ahead one hour on Saturday and go to sleep at your normal bedtime.
—Katia Hetter, CNN, 8 Mar. 2025
Stick to a Routine: Consistency is key for resetting your internal clock, so aim to wake up and go to bed at the same time daily.
—Matt Rozo, The Mercury News, 4 Mar. 2025
See All Example Sentences for internal clock
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Lauren Panoff, Mph, Rd, Verywell Health, 28 Feb. 2025
Circadian rhythms and health At the center of the connection between sleep and mental health lies circadian rhythms: your body’s internal clock.
—Mackenzie Gamble, The Conversation, 10 Feb. 2025
Have no fear, another option to lessen the impact of this change on your body’s circadian rhythm (the body’s internal clock controlling our sleep and wake cycles) is to simply set your clocks ahead one hour on Saturday and go to sleep at your normal bedtime.
—Katia Hetter, CNN, 8 Mar. 2025
Stick to a Routine: Consistency is key for resetting your internal clock, so aim to wake up and go to bed at the same time daily.
—Matt Rozo, The Mercury News, 4 Mar. 2025
See All Example Sentences for internal clock
Cite this Entry
“Internal clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/internal%20clock. Accessed 22 Apr. 2025.
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