The Role of the Pineal Gland and Your Sleep Cycle

The pineal gland produces melatonin, your natural sleep hormone.
It responds directly to light and darkness.
Darkness triggers melatonin release; light turns it off.
It helps set your internal clock, known as circadian rhythm.
Jet lag happens when this rhythm gets disrupted.
The pineal gland also influences mood and seasonal behavior.
Melatonin peaks at night and drops near sunrise.
Blue light from screens can block melatonin production.
Proper sleep strengthens immunity and hormone balance.
This tiny brain gland literally tells your body when to rest.