Natural Sleep Rhythm: Our brains have a body clock called the circadian rhythm. It responds to light and darkness and signals to the body when to wake up and when to sleep.

Is sleeping late harmful to health?

How Sleep Affects Lung Function and Breathing: In today's fast-paced life, waking up early has become a measure of success. Meanwhile, staying up late has become commonplace, sometimes due to work and sometimes due to screen time. This begs the question: what does the body actually need? The answer has less to do with time and more to do with the body's rhythm, regularity, and biological processes. Sleep isn't just rest, but a fixed system for the body's repair, and when its timing is disrupted, the effects are clearly visible.

How is the experience of sleep and wakefulness determined?

Our brains have a body clock called the circadian rhythm. It responds to light and darkness, signaling the body when to be awake and when to sleep. According to the National Institutes of Health, this system controls hormones like melatonin and cortisol, which determine the experience of sleep and wakefulness. When our sleep is in sync with this rhythm, our bodies function optimally. However, when this rhythm is disrupted, fatigue persists even after a full night's sleep.

What are the effects of waking up late?

Going to bed late and waking up early has become a common habit these days. However, this directly impacts sleep quality. Deep sleep and REM sleep, which are essential for the body's recovery, are particularly reduced. Dr. Sameer Garde explains that if someone goes to bed late and wakes up early, REM sleep is not fully achieved. This is the time when muscles recover, and oxygen levels in the body are optimal. This can be even more harmful for people with asthma or lung problems.

Is there any benefit to getting up early?

Waking up early is often associated with discipline and productivity. There's some truth to this, as morning sunlight resets the body's clock and increases alertness throughout the day. But according to the Centers for Disease Control and Prevention, adults need 7-9 hours of sleep daily, regardless of when they sleep. This means the real benefit lies not in waking up early, but in a regular sleep pattern. The effects of irregular sleep are not limited to fatigue. It can increase inflammation in the body, affect lung function, and weaken immunity. National Health Service studies also show that poor sleep reduces the body's ability to fight disease.