Consequently, this negatively affects sexual function. Finally, if you frequently suffer from stress, then Vitamin B2 deficiency surely takes place. And the symptoms of this deficiency include peeling lips, cracked lips, stomatitis, tongue inflammation, skin lesions resembling eczema, conjunctivitis, photophobia, lacrimation, and decrement in visual acuity.
When men are given supplemental testosterone it can have positive effects on erectile dysfunction as well as the “grumpy old men” syndrome of low energy, loss of drive, low libido, and loss of endurance as well as “man boobs”.  Zinc has a direct effect on the two main enzyme systems that act on testosterone: conversion of testosterone to estrogen via aromatase and the conversion of testosterone to DHT by 5 alpha reductase.   Zinc blocks the testosterone to estrogen pathway leading to more testosterone.  It turns out that only at really high zinc levels does zinc inhibit the 5 alpha reductase enzyme so when we give mild to moderate zinc supplements, DHT actually increases because there is more testosterone to feed into this pathway.   This actually benefits things because DHT has 2-3 times the times the androgen receptor affinity than testosterone.  In any case, we see an increase of testosterone and androgenic activity from DHT with zinc supplements and whether a guy has low or normal T to begin with, there is a positive change in erectile dysfunction and libido in some men due to the increased androgenic activity and less estrogen pulling in the opposite direction.  Conversely we see testosterone levels drop when a diet is low in Zinc as well as a drop in DHT.  It is important to note that this effect of increased testosterone with zinc supplementation, while well established, does not always lead to an improvement of ED and increased Libido.
While the rationale behind why it would work is airtight, the research on arginine’s actual effect on erectile dysfunction is slim, points out Charles Walker, M.D., assistant professor of urology and cofounder of the Cardiovascular and Sexual Health clinic at Yale University. But given its solid safety profile, minimal side effects, and potential benefit on heart disease, it’s worth a try, he adds, especially when taken in conjunction with other herbs on this list, which studies have shown can be more effective.
There are many different reasons a man’s ability to sustain or maintain an erection may be impaired. Impotence is the most common sexual disorder among men. It is thought that most men should be able to achieve and maintain an erection well into their 80s, but about 25 percent of all men over the age of 50 are thought to experience some form of impotence. By the age of 75, half of all men will be impotent. Impotence may come and go, depending on the state of their physical health as well as their stress levels. One of the number one causes of impotence is cardiovascular disease. Cardiovascular disease may restrict blood flow to the penile tissues, which greatly affects a man’s ability to achieve and maintain an erection during sexual arousal.
Evidence from 5 randomized studies published in the years between 2004 and 2010, has demonstrated strong evidence that aerobic exercise can benefit people with arterogenic ED. These review results of this study build on and update the evidence from studies that concluded that concluded that exercise was beneficial for people with ED and cardiovascular disorders (25–27); on ED and obesity (18) and on normal subjects with ED (24). However, studies have shown common pathway for ED, cardiovascular (28 –30) and metabolic disorders (19, 31).

Does drinking water improve erectile dysfunction? Erectile dysfunction or ED is a common concern for men. Everyday factors, such as hydration levels, may affect a person's ability to get or maintain an erection. Drinking water may, therefore, help some men with ED. In this article, learn about the link between hydration and ED, and other factors that can cause ED. Read now
In the present study zinc caused an elevation of T. This showed an increase from 2.39 to 8.21 ng/dl after two weeks of zinc treatment. This elevated T level may have contributed to the increase in number of penile thrusting (from 26.5 to 52.8) observed. Supplementation with 459 μmol/day of zinc for three months, in marginally zinc deficient healthy elderly men, has been shown to increase the levels of serum T from 8.3 to 16 ng/dl.[25] Laboratory experiments indicate that the nitric oxide erectile pathway is T dependent.[26] Many studies using animal models have confirmed that T is important in modulating the central and peripheral regulation of erectile dysfunction. T deprivation has a negative impact on the structure of penile tissues and erectile nerves.[27] Thus, elevated T levels subsequent to zinc supplementation may increase the sexual competence via rigid and sustained erection. This may promote greater tactile stimulation of the penis due to increased contact with vagina.[25]
Much higher doses have been used in certain studies, sometimes up to 100 milligrams daily. However, this is considered a very high dose that is potentially dangerous and likely to cause some side effects. Overall, it’s best to start with small doses while monitoring your reaction. Speak to a doctor or herbal practitioner before increasing your dosage to high levels.
Medicines like I-Arginine and viagra, can fix your problems for hours but vitamins and amino acids will cure erection problems for long term. Remember, not to take vitamins and medications (I-Arginine) at the same time as it can react in your body. Discuss your doctor before adding any vitamin to your routine. Apart for I-Arginine and other pills, here we have given some vitamins to quick fix your problem and have a better sex life.
Several studies have shown that erectile dysfunction is somehow linked to problems with cardiovascular health — which one comes first has been the question. It makes sense; the penis becomes erect through a complex system of blood vessels and spongy tissue called the corpora cavernosa — this is where the blood gets trapped, causing the erection. When problems arise through this system, whether they’re caused in the brain or through problems with the blood vessels, the penis can’t get erect.
Vitamin C has been associated with higher sperm counts. You can get it naturally from strawberries, raspberries and blueberries, which are anthocyanins, colorful plant chemicals which help keep your arteries unclogged, boosting circulation and erection quality. In supplement stores, you’ll find all manner of megadoses — steer clear of those; they might do more harm than good.
You can find this compound as a standalone ingredient in capsule, tablet, or tea form as well as a component of popular pre-workouts and fat burners. Yohimbine is not for everyone - even with moderate dosages it can increase the frequency and severity of panic attacks in high-anxiety individuals, interfere with medications, as well as cause headaches, dizziness, and nausea.
In the United States, certain prescription drugs containing yohimbine have been approved since the 1980s. They are labeled Yohimbine hydrochloride (which go by the brand names Aphrodyne or Yocon). Yohimbine medications are prescribed most commonly to treat sexual dysfunction in both men and women caused by a number of factors like aging, hormonal imbalances or side effects of medications.
I am so grateful Jacqui, I am seeing my girlfriend tomorrow and feel like the problem is pretty much gone! I can't believe it I thought I was broken!!! I have searched on sooo many sites and got so much bad advice and feel like posting the link of your site on all of those others. As this is a horrible problem and your method will work for me - so guys need to know this! Many, many thanks for the help.

A vacuum erection device is a plastic tube that slips over the penis, making a seal with the skin of the body. A pump at the other end of the tube makes a low-pressure vacuum around the erectile tissue, which results in an erection. An elastic ring is then slipped onto the base of the penis. This holds the blood in the penis (and keeps it hard) for up to 30 minutes. With proper training, 75 out of 100 men can get a working erection using a vacuum erection device.


The paired t-test was used to assess differences in responses using various doses of yohimbine in responders and nonresponders. Responder and nonresponder changes in tumescence, rigidity, and other physiologic responses over the entire study period were compared using independent t-tests (assuming equal variances). Independent t-tests were repeated to determine whether significant differences existed in the mean numbers of risk factors, age, or side effects among groups. Matched pairs t-tests were used to compare Florida Sexual History Questionnaire responses at each dose. Finally, χ2 analysis (or Fisher's exact test when appropriate) was used to compare the two groups on dichotomous sexual satisfaction ratings at the end of the trial; 95% confidence intervals were consistently examined to determine the magnitudes of differences detected. Two-tailed P-levels were used in reporting all results. SPSS 9.0 statistical software (SPSS Inc, Chicago, IL, USA) was used for analysis.
Reiter, W. J., Pycha, A., Schatzl, G., Pokorny, A., Gruber, D. M., Huber, J. C., & Marberger, M. (1999, March). Dehydroepiandrostone in the treatment of erectile dysfunction: A prospective, double-blind, randomized, placebo-controlled study [Abstract]. Urology, 53(3), 590-594. Retrieved from http://www.sciencedirect.com/science/article/pii/S0090429598005718
Oysters are also a great source of zinc, with just 3 ounces providing 493% of your recommended daily intake. In fact, oysters are so rich in zinc that eating too much can cause an accidental zinc overdose, so just be wary of this. Bear in mind as well that oysters are a common source of food poisoning, and they are also very high in cholesterol – might be best to stick to your nuts and seeds!
So what causes erectile dysfunction?  Sometimes it is a circulation problem.  Sometimes it is a low testosterone issue.  Sometimes it is not.  Testosterone (T) supplementation can help ED and low libido in cases of low T and even if there is a normal T level at baseline, ED can be helped.  In cases where thyroid under or overactivity is causing T levels to be less than optimal.  Aging is also a problem as T levels drop after mid 20’s and as adipose tissue increases and aromatase enzyme conversion of T to Estrogen correspondingly increases.  This causes an unfavorable E:T ratio which equates to low T.
Zinc affects different aspects of mammalian reproduction. Testicular disruption, impaired spermatogenesis and subsequent poor semen parameters are found in males with zinc deficiency. Testicular concentration of zinc was lower in male sheep fed with zinc deficient diets. The same animals showed smaller seminiferous tubules and less lumen development than the controls.[1] Similarly variable degrees of maturation arrest in different stages of spermatogenesis with reduced diameter of seminiferous tubules were noted when rats were fed with zinc deficient diets.[2] Zinc deficiency causes a reduction in the structural parameters of seminiferous tubules influences serum levels of testosterone (T) and prolactin (PRL) in rats.[3,4]

Over the years, myriad treatments and gadgets have been invented to assist with issues related to erections. They run the gamut from vacuum pumps to constriction bands, surgical implants, male hormone therapy, herbal supplements (ginkgo biloba, saw palmetto,  L- arginine, and yohimbe), and even shock-wave therapy. Lifestyle changes include: increasing exercise, decrease smoking, losing weight, and eating healthier. More natural alternative treatments include acupuncture and watermelon juice. In her hilarious and informative book entitled Bonk, researcher Mary Roach explores coupling of science and sex, and dedicates a couple of chapters to in-depth analysis of erectile dysfunction treatments.
ICI therapy often produces a reliable erection, which comes down after 20-30 minutes or with climax. Since the ICI erection is not regulated by your penile nerves, you should not be surprised if the erection lasts after orgasm. The most common side effect of ICI therapy is a prolonged erection. Prolonged erections (>1 hour) can be reversed by a second injection (antidote) in the office.
Associated risks/scrutiny: “A dose of yohimbine that’s too big could drop your blood pressure, cause dizziness, facial flushing and nausea,” warns Fratellone. Yohimbine and yohimbe bark may also increase heart rate and raise blood pressure. “No one should experiment with herbs without talking to their doctor,” reminds Fratellone. “If you’re taking Flomax and you start taking yohimbe, you’re going to dilate your penal vessels and you’ll pee more.” Other potential interactions between yohimbe and other drugs and herbs should be considered. Some of these combinations may be dangerous.
Yohimbine's powerful effects on blood flow explain why it's been used in traditional African medicine to increase sexual desire in both genders as well as improve the strength of erections in males. [1] Yohimbine's powerful stimulant properties may also benefit athletic performance on and off the field. The body absorbs and expels yohimbine rapidly.
1. Increased Blood Flow in Men with Lower Niacin Levels.  Of course, there is a lot to an erection, but I think just about everyone would agree that the #1 goal is to increase something called endothelial function.  The endothelium is the delicate lining of the arteries that pumps out nitric oxide and relaxes the arteries.  And, of course, a relaxed, i.e. more open artery is one that allows more blood to flow into your arm, your leg or your brain.  And I'm sure I don't need to explain why increased blood flow into your penile arteries is critical for erectile strength.
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.
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