Do you really know? Why do men often wake up with an erection?
Dec 15, 2024
Morning erections aren't just about sexy dreams or a full bladder; they're a fascinating physiological reflex tied to sleep. Discover how these nightly occurrences, known as nocturnal penile tumescence, happen during REM sleep phases. Learn why this phenomenon is important for male health and what it might mean if they suddenly stop. Plus, find out how women experience similar nighttime changes too!
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Morning Erections: A Reflex
- Morning erections aren't due to erotic dreams or needing to pee.
- They're a physiological reflex related to sleep, not sexual arousal.
Nocturnal Tumescence
- Women experience increased clitoral blood flow at night, similar to men's NPT.
- NPT occurs a few times nightly during REM sleep, making up 20% of sleep time.
REM Sleep Explained
- REM sleep involves deep dreaming and brain activity similar to waking.
- Rapid eye movement characterizes REM, while the body stays still without muscle tension.