Erectile dysfunction is one of the most misunderstood health issues a man can face. Many men assume it is simply a result of getting older or a personal failure, but the truth is far more nuanced. An erection depends on a coordinated chain of events involving blood vessels, nerves, hormones, brain chemistry, and emotional state. When any part of that chain breaks down, the result can feel confusing and overwhelming. Understanding what can cause erectile dysfunction is the first step toward addressing the real problem instead of treating the symptom in isolation. The causes range from silent cardiovascular disease and medication side effects to stress, anxiety, and daily habits that…