Tag - rapid eye movement

nocturnal-penile-tumescence-erection

Nocturnal Penile Tumescence: Why Do Men Wake Up with an Erection?

How many times have you wondered why men wake up with an erection? Popularly known in slang as morning wood - there are many misconceptions about how these could be due to being in a state of sexual arousal. But we are here to drop some scientific truth bombs. Guess what? Getting morning wood or...