Risk factors related to lifestyle choices include alcohol consumption,
diet,
hormone levels, inflammation, obesity, sedentary (lack of exercise) lifestyle, cholesterol levels, use of prescription drugs, tobacco smoking, stress, and (yes) motorcycling.
There is also a strong association between ED and the medical diagnoses of depression, atherosclerosis, cardiovascular disease, high blood pressure, metabolic syndrome, diabetes, and lower urinary tract symptoms (LUTS).