Overview male sexual arousal – complex process – brain, hormones, emotions, nerves, muscles, blood vessels – problem with any one of them – cause erectile dysfunction stress – mental health – cause – worsen EDproblems – get/keep erection – sign underlying condition – risk factor – heart diseasetreat underlying condition – enough – reverse ED – other – medication – direct treatment – needed Physical Causes of ED brain not sending signals to the penis. Neurological disorders – Parkinson’s disease, Alzheimer’s disease, multiple sclerosis.blood flow inadequate – heart disease – clogged arteries (atherosclerosis), high blood pressure, high cholesterol, diabetes, obesity – affect blood flow – erections difficult Psychological Causes of ED Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo. Risk Factors Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.