Circadian rhythms are one of the internal biological clocks of the human body. The circadian rhythm regulates many physiological processes, including the sleep-wake cycle, hormone production, metabolism, and nervous system function.

In this article, we will learn more about the relationship between circadian rhythms and how they affect the sleep-wake cycle.

What is circadian rhythm?

Circadian rhythms are rhythmic patterns in biological processes within the human body. This pattern follows a 24-hour cycle.

Our brain contains nerve cell clusters that form an internal biological clock. This biological clock controls the circadian cycle.

External environmental factors, particularly light, significantly impact circadian rhythm. Light, specifically blue light, stimulates the internal biological clock. When there is daylight in the morning, you will remain awake and awake. Conversely, when light decreases in the evening, it stimulates the production of the hormone melatonin and makes you sleepy.

Aside from the sleep-wake cycle, the circadian rhythm regulates various other vital body functions, such as body temperature, metabolism, digestion, and hunger. When circadian rhythms are disrupted or out of sync, you will experience a variety of health problems, including sleep disorders, mental health issues, hormonal disruptions, physical health issues, and decreased performance and productivity.

Read more: 5 Tips To Improve Sleep Quality

Effect of circadian rhythm on the sleep-wake cycle

Circadian rhythms play an important role in the sleep-wake cycle. Exposure to light during the day causes the biological clock to increase alertness while decreasing melatonin production. This keeps you awake and active throughout the day, allowing you to go about your daily routine.

Then, as night falls, the light will begin to dim. This is when the biological clock tells the body to produce more melatonin. Melatonin is a hormone that promotes drowsiness and prepares the body for sleep.

Circadian rhythms help to align sleep and wakefulness times with daytime and nighttime patterns. This establishes a regular sleep cycle, which is required for quality deep sleep and physical and mental recovery.

Read more: How To Be Able To Sleep Regularly At Night

Things that can disturb the circadian rhythm

A variety of factors can disrupt your circadian rhythm, including:

Jet lag

Traveling between time zones in a short period can disrupt your circadian rhythm. Sudden changes in light exposure can make it difficult for your body to adjust to the day-night cycle in a new environment, resulting in sleep problems and fatigue.

Shift work

People who work shifts, particularly night shifts, face significant challenges in maintaining circadian rhythms. Significant changes in work schedules can increase the likelihood of sleep disorders and other health issues.

Sleep disorders

Certain sleep disorders, such as delayed sleep-wake phase syndrome, can lead to irregular sleep patterns, such as bed late and waking up early.

Physiological and genetic issues

Underlying physiological and genetic conditions, such as hormonal changes or neurological disorders, cause some circadian rhythm disorders.

Environmental disturbances

Certain environmental factors, such as blue light from televisions, cell phones, and computers, can disrupt circadian rhythms and impair sleep quality. Those who continue to use gadgets close to bedtime often have difficulty falling asleep and staying awake later.

Psychological conditions

Anxiety, depression, and chronic stress are all examples of psychological conditions that can have an impact on one's circadian rhythm. These conditions cause hormonal imbalances, which can disrupt sleep quality and patterns.

Neurological conditions

Neurological disorders, such as dementia or traumatic brain injury, can also disrupt circadian rhythms. These neurological disorders can disrupt the biological clock's function, resulting in sleep-wake cycle imbalances.

It is critical to understand what can affect and disrupt your circadian rhythm so that you can take action to address it. If you have sleep disorders like insomnia or anxiety before bedtime, you should consult with a doctor. You can also access health consultation services by downloading the Ai Care app from the App Store or Play Store.

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