The vitamin-deficiency disease pellagra was first identified in 1735 by Spanish physician Gaspar Casal. Considered to be Spain’s first epidemiologist, Casal is famous for his clarity and independence of thought, along with his conceptual change in the approach to medicine. Instead of mere observation and reporting, Casal moved to a fact-based induction methodology, presaging the work of John Stuart Mill, the political philosopher, economist, and logician, one hundred years earlier.
When given orally, yohimbine reaches peak levels in 10–15 min, and the half-life is 0.6 h. The efficacy of yohimbine in sexual function has been questioned, perhaps because of early questionable multidrug preparations.10,11 Yohimbine has been shown to have some effect on psychologic erectile dysfunction12,13 and in reversing fluoxetine-induced sexual dysfunction.14
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
Good information. However, be sure you are using yohimbine and not yohimbe. Reasons is that I had not realized this difference in the various products I was purchasing and I found out the hard way . Yohimbine can be sold at up to 2% at health food stores legally or you may ask your doctor and it can or is I believe prescribed at 8% yohimbine. I personally love yohimbine for helping me with depression and yes social anxiety. The form yohimbe is much cheaper but the alcoloids can include other stimulate ingredients and the active ingredient the yohimbine is not standardized leaving the user at risk of an uncertain but generally unpleasant overstimulation similar to to much coffee only worse and can last a rather long time up to 10 or more hours. So please just use Yohimbine 2percent and you should be safe . As always consult your medical doctor before taking any new supplements.
Yohimbine. This chemical is found in the bark of an African tree called yohimbe. It has been used as a male aphrodisiac in Africa, and under medical supervision it has been used as a prescription drug to treat ED. Supplements made from yohimbe bark are also available without a prescription, but they can be life-threatening if used at high doses, according to the Natural Medicines Comprehensive Database. The supplement can interact in a harmful way with certain drugs, such as blood pressure medications, and should be avoided by anyone with liver, kidney, heart, or diabetes problems or problems with anxiety or depression. Like DHEA, yohimbine should not be taken without a doctor's supervision.
Kegel exercises benefits a lot of men. In particular, they also help in strengthening the bulbocavernosus muscle. This very important muscle performs three types of roles. One it allows the penis to grow and be engorged with blood during erection. Second, it pumps while ejaculation, and third, it helps in emptying the urethra right after urination.
"Erectile dysfunction can be a very serious issue because it's a marker of underlying cardiovascular disease, and it often occurs before heart conditions become apparent. Therefore, men should consider improving their weight and overall nutrition, exercise more, drink less alcohol and have a better night's sleep, as well as address risk factors such as diabetes, high blood pressure and cholesterol.
One study that evaluated the effects of yohimbine supplementation on body composition (muscle mass, body mass, etc.) and exercise performance in professional soccer players found that body fat percentage/fat mass significantly decreased in the yohimbine group compared to the placebo group. However, supplementation with yohimbine did not significantly alter overall body mass, muscle mass, or performance indicators. (10) Other studies, however, have found that people do tend to experience increases in energy and alertness when taking yohimbe, sometimes even so much that it causes symptoms of anxiety or restlessness (much like caffeine does).
A study published in The American Journal of Cardiology confirmed that aerobic exercises will help you to cure your erectile dysfunction. Erectile dysfunction is most commonly caused by obesity, hypertension, and diabetes, which decrease the blood flow in the penis. Aerobic exercises can and will help you to improve your health in general, improve your blood flow, and ultimately treat your condition.
Most studies related to male infertility show a clear concise relationship between zinc and ed. During a study some young men were given a diet which included very little amounts of zinc and thus they developed a zinc deficiency. When testosterone levels were measured after 20 weeks of low-zinc diet it was found that the level of the hormone had drastically reduced. The study also found that in elderly men, with an increase in the uptake of zinc, testosterone levels nearly doubled.
This content is strictly the opinion of Dr. Josh Axe and is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of medical advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. Neither Dr. Axe nor the publisher of this content takes responsibility for possible health consequences of any person or persons reading or following the information in this educational content. All viewers of this content, especially those taking prescription or over-the-counter medications, should consult their physicians before beginning any nutrition, supplement or lifestyle program.
The researchers noted that "when patients were stratified according to the baseline severity of ED, the patients with moderate and severe ED who received niacin showed a significant improvement in IIEF-Q3 scores (0.56 0.96 [P = 0.037] and 1.03 1.20 [P < 0.001], respectively) and IIEF-Q4 scores (0.56 1.03 [P = 0.048] and 0.84 1.05 [P < 0.001], respectively] compared with baseline values, but not for the placebo group...For patients not receiving statins treatment, there was a significant improvement in IIEF-Q3 scores (0.47 1.16 [P = 0.004]) for the niacin group, but not for the placebo group. Niacin alone can improve the erectile function in patients suffering from moderate to severe ED and dyslipidemia." 
In the analysis of the study, the niacin group showed a significant increase in both IIEF-Q3 scores and IIEF-Q4 scores compared to the initial baseline values. While the placebo group also showed a significant increase in IIEF-Q3 scores (high hopes, no doubt), it did not for IIEF-Q4 scores. In other words, the “placebo effect” did not extend to maintaining erections. Also, when patients were stratified according to the baseline severity of ED, the patients with moderate and severe ED who received niacin showed a significant improvement in IIEF-Q3 scores (0.56 and 1.03, respectively) and IIEF-Q4 scores (0.56 and 0.84, respectively) compared with baseline values. These results were not significantly increased for the placebo group.
Most human studies completed thus-far examine the impact of oral yohimbine consumption on erectile dysfunction (ED) in males. A meta-analysis of seven randomized, placebo-controlled trials found that yohimbine is significantly more effective in treating ED compared to placebo.  These findings did not compare yohimbine to prescription medications like Viagra®, which are designed to treat ED.
Yohimbe goes by many names depending on how it’s sold. These include Yohimbehe, Yocon, Yohimex, Johime, Aphrodien and Corynine. Do any yohimbe supplements actually work to help treat sexual problems like impotence, or other conditions? Study results have been somewhat mixed. But there’s some evidence that they may help these conditions. It’s especially helpful when combined with other substances that promote better flow and higher energy levels, such as L-arginine. (3)
In conceiving the potential solutions to issues around erectile dysfunction, it’s really helpful to understand clearly how an erection is achieved and completed. To achieve an erection, there needs to be some form of stimulation, either from touch or some sort of audiovisual stimuli. Once the stimulation occurs, chemical messengers are released and blood starts to fill into the penis. In terms of the musculature, the bulbospongiosus and ischiocavernosus muscles need to be relaxed so blood can fill the area completely. Then the bulbospongiosus needs to contract to keep the blood in the penis. The erection ‘completes’ with the rhythmic contraction of the bulbospongiosus muscle.