Morning erection
If you ever wonder why males wake up with an erection here is asapSCIENCE to the rescue. It turns out that erections caused during REM sleep can help penile maintenance and it can also prevent you from urinating on the bed.
Channels: Interesting Science Others
Tags: erection morning maintenance urination
Uploaded by: guptava ( Send Message ) on 02-10-2014.
Duration: 2m 5s
