All of us, at some point, have experienced some form of sleep deprivation: neglecting sleep severely harms physical and mental health throughout life, resulting in short-, medium-, and long-term detriments to the body's overall health.
If you are a fitness professional or an athlete, it is essential to understand and respect the Circadian Cycle to optimize performance, recovery, and overall well-being!
So, what exactly is the Circadian Cycle?
The Circadian Cycle (or circadian rhythm) is the mechanism by which our body regulates itself between day and night, giving physiological signals such as waking up, feeling hungry, being active, feeling sleepy, among others. The 24-hour period — "a full day" — dictates our Circadian Cycle.
But why are some people more active during the night rather than the day?
Our brain controls our choices for daily activities. Some people have higher energy in the morning, others have much more energy at night. Regardless, studies indicate that genetics play a key role in determining the chronotype (the behavioral manifestation of our internal clock). It's as if there is a 24-hour "clock" sending circadian rhythm signals to all other brain regions and body organs.
However, this cycle does not always function properly for everyone; negligence in sleep, consumption of heavy foods, excess caffeine, alcohol, or even a sedentary lifestyle can negatively affect sleep and, consequently, the 24-hour "clock."
There are other "pointers" governed by the circadian rhythm, such as body temperature, appetite, blood pressure, hormone levels, among others. Thus, it is possible to affirm that the circadian rhythm varies from person to person and, according to experts, changes with age: energy levels vary from child to adult or elderly.
How can I achieve a good Circadian Cycle?
We have all certainly heard the expression "Swiss clock," so making our body operate this way means paying close attention to our daily habits:
👉 Regular sleep routine
Go to bed and wake up at the same time every day, including weekends.
👉 Comfortable sleeping environment
A dark, quiet room with a pleasant temperature.
👉 Avoid caffeine at night
Reduce stimulant intake and avoid using devices before sleeping.
👉 Sunlight exposure
Exposure to sunlight during the day or morning helps regulate the Circadian Cycle.
👉 Regular physical exercise
Exercise is essential, as long as intense workouts are avoided in the hours preceding sleep.
👉 Balanced diet
Avoid heavy meals before bedtime. A balanced diet throughout the day greatly contributes to restorative sleep.
👉 Do not fight sleep
Jet lag, shift work, or leaving the TV light on during sleep can harm this cycle and cause health issues.
Why should I be informed?
As a fitness professional, athlete, or enthusiast, you should know that to achieve maximum and healthy performance, prioritizing sleep and adjusting daily habits to better guide the Circadian Cycle is essential, resulting in significant improvements in quality of life and, of course, training results.
Therefore, you are an "active voice" in promoting practices that support quality sleep.
Final considerations
Recognizing that the Circadian Cycle directly impacts physical and mental health, it is crucial to understand that neglecting sleep can cause serious short-, medium-, and long-term consequences, affecting performance, recovery, and overall well-being.
For fitness professionals, athletes, and enthusiasts, respecting this "clock" is essential for optimizing results and promoting a healthier life.
Good Training!
