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Why do men often wake up with an erection? episode artwork

Sep 26, 2026 5 min

Why do men often wake up with an erection?

from Do you really know? Hosted by Bababam

A lot of people think that morning erections are triggered by erotic dreams, or a need to pee, but in fact they're a physiological reflex linked to sleep. That’s right - they’re not dependent on sexual arousal at all. And in a somewhat similar way, women actually also experience increased blood flow to the clitoris during the night. Now, the scientific term for a nighttime erection is nocturnal penile tumescence, or NPT for short, and men get a few each night on average. They occur during REM sleep phases, which make up around 20% of total sleep time. What exactly is REM sleep? Are you saying it’s an involuntary reflex then? What if I stop experiencing morning erections? In under 3 minutes, we answer your questions! To listen to the last episodes, you can click here: ⁠⁠⁠Is the gut really our "second brain"?⁠⁠⁠ ⁠⁠⁠What's the best way to have quick sex?⁠⁠⁠ ⁠⁠⁠What are the best techniques for giving oral sex to a woman?⁠⁠⁠ A podcast written and realised by Joseph Chance. First broadcast: 26/04/2024.

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