Biological Clock ·
Circadian Rhythm
un
seel
.com · 24-hour cycle · SCN · clock genes · cortisol
Phase
Day
Hormone
—
State
—
Light / daytime
SCN in brain
Melatonin (night)
Cortisol (morning)
▶ Play
←
→
🔇 Unmute
Reset
Un
seel
.com · Biological Clock