While these side effects mainly create discomfort, some individuals are at risk for more serious, even life-threatening reactions to these drugs. Some men have reported fainting after taking impotence medications, and priapism (a painful condition involving an erection that does not subside after more than four hours) has also occurred as an effect of impotence drugs. This condition can lead to permanent nerve damage; injectable drugs may also cause irreversible damage to the penis if used incorrectly.
Diseases like diabetes, cardiovascular disease, atherosclerosis, kidney disease, obesity, multiple sclerosis, and depression, and activities like bicycling, smoking, alcohol or drug abuse can impair blood flow or nerve impulses throughout the body. Surgery, as well as certain medications, can also result in ED. However, this may be a temporary problem.4

In a study by Segal et al. (11), 4 out of 5 healthy individuals were able to achieve tumescence beyond 60% maximum rigidity when subjected to PVS using the Viberect® alone, with no other external visual sexual stimulation. In a randomized controlled study by Fode et al. (12) involving 68 men who underwent nerve-sparing radical prostatectomy, 30 men who received PVS to the frenulum daily for 6 weeks, using the Ferticare® vibrator, showed a trend towards better erections. After 1 year, 53% in the PVS group had an IIEF score ≥18 compared with 32% in the control group, although no statistical achievement was achieved. The role of PVS in penile rehabilitation is based on the postulation that PVS provides early activation of the parasympathetic erectile spinal centres at S2–S4 level, which result in early recovery of the neuropraxic cavernosal nerves.
Research indicates that some specific nutrients—from common vitamins to lesser-known plant extracts—have demonstrated positive effects on very specific aspects of penile performance. Eat This Not That! has rounded up the best examples of these superfoods. And make your little guy look bigger by flattening your belly! After reading this, don’t miss these best foods for sexual stamina!
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.

L-arginine, or arginine, is an amino acid found in red meat, poultry, fish, and dairy products that helps expand blood vessels and increase blood flow. “The body uses this semi-essential amino acid as the primary building block for nitric oxide,” explains Harry Fisch, M.D., clinical professor of urology and reproductive medicine at Weill Cornell Medical College/New York Presbyterian Hospital.
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No matter what erectile dysfunction treatment or treatments (whether herbal remedies or not) a man ultimately decides upon, experts say it's important to eat healthily and to avoid smoking and heavy drinking. Moreover, adequate exercise, stress reduction, and sleep can improve erectile dysfunction in many. In addition, says Lamm, "A loving, receptive, and responsive partner is a home run. After all, this is still a couple's issue."
To achieve and maintain an erection, healthy blood vessels and an optimum blood flow are essential. Significantly, therefore, Dr. Rath’s research has proven that specific micronutrients play key roles in maintaining the structural integrity of blood vessels and optimizing blood flow. Such micronutrients include vitamins C and E, the amino acids lysine and proline, and the mineral copper.
3. Testosterone replacement. Before oral medications like Viagra, testosterone was routinely used to treat erectile dysfunction as it is central in the male sexual response, including the desire for sex and the process of getting an erection. Testosterone can be administered in a number of ways, for example orally, by means of an injection, skin patch, or subcutaneous (under the skin) pellet. 
Warnings: Keep out of reach of children. Not intended for persons under 18 years of age. Do not use if you are pregnant or nursing or at risk of or being treated for high blood pressure and heart disease. *Disclaimer: The statements appearing on this listing have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease or conditions but rather a dietary supplement intended for nutritional support. Individual results may vary.
A study published in the journal Fertility and Sterility that analyzed the effect of various fruit and vegetables on sperm quality discovered carrots had the best all-round results on sperm count and motility — a term used to describe the ability of sperm to swim towards an egg. Men who ate the most carrots saw improved sperm performance by 6.5 to 8 percent. The Harvard researchers attribute the boost to carotenoids, powerful antioxidative compounds in carrots that help the body make vitamin A.
10 ways of knowing that you are properly squeezing your pelvic floor muscles (PFM): 1) The base of your penis retracts inwards towards the pubic bone as you contract your PFM. 2) The testes rise towards the groin as you contract your PFM. 3) When you place your index and middle fingers in the midline between the scrotum and anus you feel these muscles tighten as you contract your PFM. 4) You can pucker your anus (not the gluteal muscles) as you contract your PFM. You feel the anus tighten and pull up and in, known as “anal wink.” 5) You get the same feeling as you do when you are ejaculating when you contract your PFM. 6) When you touch your erect penis, you feel the erectile cylinders surge with blood as you contract your PFM. 7) You can make your erect penis elevate (lift and point) as you contract your PFM. 8) You can stop your urinary stream completely when you contract your PFM. 9) You can push out the last few drops of urine that remain after completing urination when you contract your PFM. 10) After pursuing PFM training, you notice improvements in erectile rigidity and durability as well as better quality ejaculations, ejaculatory control and improvement in urinary control.

Just because a product claims to be natural doesn't mean it's safe. Many herbal remedies and dietary supplements can cause side effects and dangerous interactions when taken with certain medications. Talk to your doctor before you try an alternative treatment for erectile dysfunction — especially if you're taking medications or you have a chronic health problem such as heart disease or diabetes.
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