Performance anxiety is the top cause of premature ejaculation. Sexual anxiety may be the 1,000-pound pink elephant inside the room.
Anxiety about being not able to perform or to satisfy a partner can give rise to a stress response within the body.
Men generally obtain their understanding of sex from pornography or from their male friends, leading them to get a distorted method of seeing what sex is about. Men also do lots of work all day out, but don't want sex due to fatigue.