The deepest stage of non-rapid eye movement (NREM) sleep.
A hormone produced by the pineal gland that helps regulate the sleep-wake cycle.
A 24-hour cycle that influences the timing of sleep and other biological processes.
The stage of sleep characterized by rapid eye movements and vivid dreaming.
All courses were automatically generated using OpenAI's GPT-3. Your feedback helps us improve as we cannot manually review every course. Thank you!