5 doctors weighed in:
Explain what melatonin has to do with circadian rhythm?
5 doctors weighed in

Dr. Hesham Hassaballa
Internal Medicine - Pulmonary Critical Care
2 doctors agree
In brief: Light/dark cycle
Melatonin is a hormone released by the pineal gland.
This gland is connected to the nerves emanating from your eyes, and when it is dark, the gland releases melatonin. It is thought that melatonin helps you fall asleep. Melatonin is available commercially, and it may help people fall asleep. Melatonin may also help shift the body clock forward or backward, depending on when it is taken.

In brief: Light/dark cycle
Melatonin is a hormone released by the pineal gland.
This gland is connected to the nerves emanating from your eyes, and when it is dark, the gland releases melatonin. It is thought that melatonin helps you fall asleep. Melatonin is available commercially, and it may help people fall asleep. Melatonin may also help shift the body clock forward or backward, depending on when it is taken.
Dr. Hesham Hassaballa
Dr. Hesham Hassaballa
Thank
Dr. Sarah Kohl
Travel Medicine
1 doctor agrees
In brief: Resets clock
Your internal clock (circadian rhythm) does not run exactly 24 hours.
Both sunlight and melatonin produced by the brain 'tell' your internal clock when morning and evening are occurring. This resets your clock so it can be aligned with external 'real world' time. Melatonin lets your internal clock know when the end of the day (bedtime) is occuring.

In brief: Resets clock
Your internal clock (circadian rhythm) does not run exactly 24 hours.
Both sunlight and melatonin produced by the brain 'tell' your internal clock when morning and evening are occurring. This resets your clock so it can be aligned with external 'real world' time. Melatonin lets your internal clock know when the end of the day (bedtime) is occuring.
Dr. Sarah Kohl
Dr. Sarah Kohl
Thank
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