Circadian Rhythm

Definition

Circadian rhythm is the natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Scientific / Technical Definition

Circadian rhythm refers to the endogenously generated biological processes that follow an approximately 24-hour cycle and are influenced by external cues such as light and temperature. It is controlled by the suprachiasmatic nucleus (SCN) of the hypothalamus in the brain and affects various functions including sleep-wake patterns, hormone release, and body temperature.

Benefits

• Regulates sleep patterns for improved rest.
• Enhances alertness and cognitive function during daylight hours.
• Supports mental health by maintaining balanced hormone levels.
• Promotes regular metabolic processes and energy balance.

Examples

• Waking up and going to sleep at the same time every day.
• Experiencing natural light exposure in the morning.

Additional Information

• Importance: Circadian rhythm is crucial for maintaining optimal health as it governs essential bodily functions and processes, including sleep patterns, feeding behavior, hormone production, and cell regeneration.

Related Terms

• Melatonin
• Sleep Cycle
• Biological Clock
• Circadian Rhythm Disorders

References

• Understanding Circadian Rhythms
• Circadian rhythm: Wikipedia