14 Top Reasons Women Don’t Want To Have Sex (And 20 Things To Do About It!)

15. Sleep.

Nothing in the world can replace sleep, and you need it to do anything—work, drive, read, think, talk, and yes, have sex. Being tired is one of the biggest reasons couples decline to get down and dirty. Lack of sleep is another physical stress that triggers cortisol, stress hormone release which reduces happy hormones like progesterone and testosterone—so be sure to get your 7 to 8 hours a night.