Melatonin is the hormone that makes you feel sleepy. Your brain produces it in response to darkness. It helps regulate your circadian rhythm (your body's internal 24-hour clock) and promotes sleep.
Melatonin is often referred to as the "sleep hormone" because it directly influences your body's ability to fall asleep and stay asleep. Light exposure at night can block melatonin production, making it harder to fall asleep.
While melatonin is the primary hormone responsible for sleepiness, other hormones can also contribute to feeling tired, such as:
- Progesterone: This hormone, which helps maintain pregnancy, can also make you feel sleepy.
- Cortisol: This hormone is responsible for waking you up, but too much cortisol can lead to fatigue.
It's important to note that hormone levels can vary throughout the day and can be affected by factors such as stress, diet, and exercise. If you are consistently feeling tired or experiencing sleep problems, it's essential to consult a doctor to rule out any underlying medical conditions.
