The conversation between human and AI assistant.
Why does a human body feel sleepy between 3am-5am in the morning regardless of the rest taken?
Can you tell me why a human body feels sleepy between 3am-5am in the morning regardless of the rest taken?
The human body follows a natural circadian rhythm which controls sleep-wake cycle. The lowest point of this cycle occurs between 3am to 5am in the morning, which causes sleepiness regardless of the rest taken.