Melatonin

Melatonin is a neurohormone naturally secreted by the pineal gland. It is not a sleeping pill, but a "signaling hormone" that regulates the circadian rhythm (biological clock).

Melatonin's Main Effects and Mechanisms of Action • Shortens sleep latency: Helps reduce the time it takes to fall asleep after lying in bed (sleep latency). • Regulates the biological clock and time zone: Suitable for adjusting sleep disorders caused by jet lag, shift workers, or those with delayed sleep phase syndrome (a person's biological clock is delayed). • Improves overall sleep quality: Has a supplementary effect on certain groups (such as the elderly who experience insomnia due to age-related decline in melatonin levels). • Non-traditional sleeping pills: It primarily works by "synchronizing the biological clock," unlike typical addictive sleeping pills, and usually does not cause serious physical dependence.

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