The ongoing stress and anxiety from marital, financial or other external problems can psychologically affect your sexual performance. Because stress contributes to increased blood pressure and cholesterol, it is not surprising that it is associated with a greater risk of impotence.
For example, you may have had no problem performing sexually until you lose your job or have a pay cut from company downsizing. In this regard, it is possible for your high level of worry, anxiety, and stress to interfere with nerve impulses in your brain when you attempt sexual intercourse. The reason for this is that stress pumps you up causing an adrenaline release, which sets up a whole cascade of reactions including increased heart rate and blood pressure. Here is where the brain-penis connection gets messed up as the brain is getting all sorts of mixed or negative signals from the body.
Yet consider this: What man doesn’t have a “fear” of erectile dysfunction if this has happened before? It’s only normal to feel higher anxiety about your ability to perform if you have experienced erectile dysfunction. Yet just having “performance anxiety” is enough to actually cause the impotence to occur again--and again and again.