ED is caused by vascular, hormonal, neurogenic, pharmacological, or psycho-genic factors. Performance anxiety where the person fears failing in a sexual scenario is a common psychogenic cause for ED.3 Neurogenic causes are related to diseases like Alzheimer's, Parkinson's, stroke or spinal cord injuries. Radical removal of the prostate (also called prostatectomy) is the cause of nerve-related ED as nerve injury is possible despite advances in surgical methods.4
However, you might actually be better off going one step back in the chain reaction and taking an L-citrulline supplement. While your body converts L-arginine to nitric oxide, it also metabolizes it too fast when the amino acid is taken in an oral supplement, according to a 2011 study from the University of Foggia in Italy. L-citrulline, which the body converts to L-arginine, is actually a better option to follow the same metabolic pathway and serve as a treatment for ED, the same study found.
//cure-erectile-dysfunction.org and a clinic offering xcell treatment to many things as well as erectile dysfunction. i know what u r passing trough and my advice is to not stop life. keep on working/studying and try to live healthy as much as u can. i can tell ur body has the potential to heal itself but u have to give it right resources to use.. have good diet, stay away from smoking-alcohol, take vitamins, eat natural food as much as you can.
Another age-old therapy for ED is acupuncture. This is an ancient Chinese treatment where thin needles are inserted into specific points of the body to relieve all kinds of illnesses. Acupuncture has been used to treat ED for years. Studies show that acupuncture improves erection as well as in the treatment of erectile dysfunction with psychological cause.18
For many men, stopping smoking is an erectile dysfunction remedy, particularly when ED is the result of vascular disease, which occurs when blood supply to the penis becomes restricted because of blockage or narrowing of the arteries. Smoking and even smokeless tobacco can also cause the narrowing of important blood vessels and have the same negative impact.