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
In other words, exposing ourselves to natural light early in the day helps regulate our internal clock so that our system stays balanced from day to night, winter to spring.
—
Ana Morales, Vogue, 18 Apr. 2025
Establishing a consistent bedtime helps synchronize the body’s internal clock, leading to smoother mornings and better sleep quality.
—Lia Miller, Parents, 14 Mar. 2025
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
See All Example Sentences for internal clock
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Ana Morales, Vogue, 18 Apr. 2025
Establishing a consistent bedtime helps synchronize the body’s internal clock, leading to smoother mornings and better sleep quality.
—Lia Miller, Parents, 14 Mar. 2025
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
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 29 Apr. 2025.
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