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

While cortisol is ultimately controlled by your internal clock and stress response, maintaining a regular sleep schedule, managing stress and getting morning light exposure can all help support good levels of this metabolite. —New Atlas, 24 Aug. 2025

This internal clock regulates body temperature and hormone production, factors that influence athletic performance. —Austin Meek, New York Times, 22 Aug. 2025

The logic here is to reset the body’s natural rhythms through fasting and immediate physical activity to align one’s internal clock with the new local time before introducing any food. —Preston Fore, Fortune, 2 July 2025

Room lighting mimics the natural light spectrum, helping reset the body’s internal clock. —Nel-Olivia Waga, Forbes.com, 2 July 2025

Rhymes for internal clock

• electroshock
• aftershock
• antiknock
• arawak
• hollyhock
• interlock
• isopach
• manioc
• shuttlecock
• tomahawk
• weathercock
• alcock