Mental stimulation plays a major role in sex, both in its overall enjoyment and in mediating the physiological pathways of arousal. There are a number of reasons for psychological impotence. Often, stress or exhaustion may be possible explanations for impotence. Anxiety, depression, or post-traumatic stress disorder also may result in impotence, as can a history of sexual or physical abuse. Guilt associated with a sexual relationship or encounter or problems in a relationship may also contribute. One often-overlooked reason for psychological impotence is confusion over one