Do you some time feel energized or tired around the same time each day? If so, then you have experienced the Circadian Rhythm at work? But what precisely is Circadian Rhythm, and why does it matter in the first place?
To help answer some of the questions in mind, Circadian Rhythm is simply the internal clock responsible for regulating the body’s sleep and wake cycles over a 24-hour time period. Since it’s controlled by the part of the brain that responds to light, alertness tends to peak in the course of the day and decline at night.
So, how does the Circadian Rhythm work? In a nutshell, it not only controls sleep and wake cycles, but impacts may key aspects of their lives of most organisms. Keep in mind Circadian Rhythm is the reason most travelers experience jet lag. The same applies for why birds migrate long distances without losing their way.
However, you need to remember that Circadian Rhythm is controlled by two main processes i.e.; the internal biological clock system and external surroundings. Each of the body’s biological clocks is controlled by the ‘master clock,’ a group of approximately 20,000 nerve cells forming the suprachiasmatic nucleus, or SCN.
It is also essential that you understand the relationship existing between Circadian Rhythm and sleep. As you might already know, light enters the eye through the retina before traveling down a neutral pathway to the SCN, triggering alertness and the wake state. With sunset, the master clock signals the brain to produce melatonin, which triggers drowsiness and promotes sleep.
Aside from light, there are other factors that could contribute to sleep and wake times. Some of the most common ones include sleep deprivation, the length of time one has been awake, daylight-saving time, and seasons.
We can never conclude without mentioning the sheer fact that Circadian Rhythm has an important influence on energy and fitness levels, not forgetting the functioning of vital bodily process. A healthy Circadian Rhythm is associated with longevity, reduced stress levels, and a strong metabolism.
The Bottom Line
There is more you need to know about Circadian Rhythm than what is simply included in this simple guide. No wonder you should take it upon yourself to do a bit of research to better understand what you’re contending it in the first place. That way, you stand a better chance of preventing Circadian Rhythm disorders.