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Above graph shows the major physical/biological causes of erectile dysfunction (ED) according to journal.diabetes.org.

Vascular, meaning related to blood vessels, arteries, smooth muscles, and fibrous tissues, often as a result of disease, is the most common physical/biological cause of erectile dysfunction (ED).

Lifestyle choices that contribute to heart disease and vascular problems also raise the risk of erectile dysfunction. Smoking, being overweight, and avoiding exercise are definite contributors to erectile dysfunction since they adversely affect our vascular systems.

Surgery (especially radical prostate and bladder surgery for cancer) can injure nerves and arteries near the penis, causing erectile dysfunction.

Injury to the penis, spinal cord, prostate, bladder, and pelvis can lead to erectile dysfunction by harming nerves, smooth muscles, arteries, and fibrous tissues of the corpora cavernosa.

Common medicines blood pressure drugs, antihistamines, antidepressants, tranquilizers, appetite suppressants, and cimetidine (an ulcer drug) can produce ED as a side effect.

Although most men automatically turn to Viagra, Cialis, or Levitra for help, for many men not smoking and getting exercise can cure the physical/biological erectile dysfunction.

Merry Christmas!