The diagnosis of erectile dysfunction requires a comprehensive sexual and medical history that include a validated questionnaire, the Sexual Health Inventory for Men (SHIM), and asking if they experience a rigid erection at night, in the morning, or during masturbatory approaches. The presence of rigid morning or night erections, or rigid erections at any sexual thought suggests a mainly psychogenic cause. Conversely, erectile dysfunction with a gradual onset, progressive course, or long duration suggests a predominantly organic cause.
Antioxidants boost nitric oxide production and prevent NO breakdown. Ascorbic acid has direct effects on the bioactivity of NO, and augments NO production in a variety of body processes. The effects are actually synergistic with Vitamin E. Both vitamins are not usually measured, and a reasonable dose of Vitamin C is 500 to 1,000 mg daily. Vitamin E supplementation should be limited to <400 IU per day because of potential adverse long-term health effects of higher doses.
A study published in May 2014 in The Journal of Sexual Medicine found that some men can reverse erectile dysfunction with healthy lifestyle changes, such as exercise, weight loss, a varied diet, and good sleep. The Australian researchers also showed that even if erectile dysfunction medication is required, it's likely to be more effective if you implement these healthy lifestyle changes.