Morning erections
Many men consider their penises are erect upon waking as a consequence of urine buildup in the bladder, but this is false. Morning erections are in principle nighttime erections which take place during Rapid Eye Movement (REM) sleep (when most dreaming happens), though men older than sixty years may have them during even non-REM sleep. Commonly, we experience four intervals of REM sleep per night. These spontaneous woodies in the wee hours are caused by specific neuroreflexes that are stimulated during REM sleep. [Read more →]










