A physical exam checks your total health. Examination focusing on your genitals (penis and testicles) is often done to check for ED. Based on your age and risk factors, the exam may also focus on your heart and blood system: heart, peripheral pulses and blood pressure. Based on your age and family history your doctor may do a rectal exam to check the prostate. These tests are not painful. Most patients do not need a lot of testing before starting treatment.
Ancient Incans consumed this energizing Peruvian plant before battle or a bout of sex, Chris Kilham, an ethnobotanist at the University of Massachusetts at Amherst, told Outside Online. Maca increases sexual appetite, stamina, endurance, and fertility. One 2008 study conducted at the Depression Clinical and Research Program at Massachusetts General Hospital in Boston found that maca helped people with antidepressant-induced sexual dysfunction to regain their libidos.
The RigiScan™ portable home monitor recorded nocturnal penile tumescence and rigidity testing. The monitor's quantitative analysis software quantitates various parameters of tumescence and rigidity, which includes the area under the curve over time slept, reported as tumescence activity units and rigidity activity units. The reproducibility and accuracy of this technique have been reported.28 Baseline normal values were used as previously reported,29 Rigidity had to be at least 60% at the base and 50% at the tip and maintained for at least 10 min. At least half of the episodes had to meet these criteria, with a minimum of three or four episodes per night. Tumescence had to achieve a height of 3 cm at the base and 2 cm at the tip.
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]
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." [3]
In addition, statins had a relatively fast effect on the problem of erectile dysfunction as compared to its role in the reduction of cholesterol, which suggest that Niacin drugs were reaching to deal with root inflammation of the mentioned problems significantly. According to the researcher Howard Hermann, Men consuming Niacin scored better on both self-reported tests associated with the function of erectile and the levels of lipids in blood.
Yohimbine significantly increased subjective measurements of sexual desire, sexual satisfaction, frequency of sexual contacts, and erection quality during sexual intercourse. Each subject also underwent a sleep study and researchers found that yohimbine also objectively increased the rigidity of erections while sleeping. [12] Yohimbine appears to alleviate both physical and psychological symptoms associated with ED.
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. 
Returning to pellagra, Dr. Casal was the first to offer a clinical description of the disease. He called it mal de la rose due to the red rash seen on the hands and feet of sufferers. In fact, his account is now recognized as the first modern pathological description of a syndrome. This was the beginning of a progression of discoveries that led to the isolation of niacin in 1911, and its direct implication as the dietary deficiency factor in pellagra in 1937.

The number of intromissions in the 5 mg/day group was comparable with controls. On the other hand number of penile thrusting was significantly increased with the same dose. These are indications of unimpaired erectile function due to supplemented zinc. Our observations also confirmed the lack of aberrant sexual behavior which is indicative of uninhibited penile tactile sensations.[15] Sexual behavior may also be changed with motor weaknesses and incoordination.[12] Supplementation with zinc did not impair muscle strength or coordination when tested with bar and bridge tests, indicating that prolongation of ejaculation was not mediated through these mechanisms.


It’s easy to see how erectile dysfunction subsides with exercise. Not only does it help reduce cardiovascular risk factors, but it’s also been shown to reduce stress, another cause of the condition. The best part is that it doesn’t take much effort to get started on an exercise routine. “When it comes to exercise, there is no one-size-fits-all approach,” co-author Dr. Stephen Freedland said in the release. “However, we are confident that even some degree of exercise, even if it’s less intense, is better than no exercise at all.”
It is important that you exercise, not only to combat ED but also to maintain your general health. Any aerobic exercise such as running, cycling or swimming will be great for improving your overall health and fitness. These kinds of exercise improves your cardiovascular health, which is important to help you treat your ED. You may also find it helpful to review your general lifestyle and reduce factors which could be contributing to your ED, such as smoking, drinking alcohol and eating unhealthy foods.

This content is provided as a service of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of the National Institutes of Health. The NIDDK translates and disseminates research findings through its clearinghouses and education programs to increase knowledge and understanding about health and disease among patients, health professionals, and the public. Content produced by the NIDDK is carefully reviewed by NIDDK scientists and other experts.
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There’s no bedroom bummer quite like having to fly at half mast, but your penis problems are likely more common than you think: As many as 30 million American men suffer from erectile dysfunction, and one in four who seek treatment for ED are actually under the age of 40, according to a study in The Journal of Sexual Medicine. We all know there’s a little blue pill that can fix the failure to launch—but you don’t necessarily have to fill a ‘script to save your stiffy.
The search criteria identified 210 studies from 1972 to 2010; on inserting randomized controlled trials only 26 studies were identified out of which only 5 met the inclusion criteria and 21 studies did not meet the inclusion criteria, hence, were excluded. Five (18, 24–27) randomized controlled trials (RCTs) met the inclusion criteria; studies involved the use of aerobic exercise in the management of ED, the IIEF was the assessment tool for ED and also involved control groups. A total of 385 subjects were involved: Lamina et al (25), n=43; Lamina et al (26), n=43; Esposito et al (18), n= 110; Kalka et al (27), n= 129; Maio, Saraed and Marchiori (24), n= 60.
Two years ago I took regular Niacine for about a year to lower LDL and increase HDL. I did not want to take Statins because of its side effects. I was being monitored by my Dr. because of the effect on liver enzymes. I took 1.5 gr together with Phytosterols. The treatment was effective and the only side effect were the flushes which I found could be eliminated by having 500 mg at the end of each of the 3 main meals. I stopped treatment for a year or so, but now the Dr. suggested I start taking Niacine. or Statins. I chose Niacine (Nicotine Acid) and started with 500 mgs for 3 days; increased it to 1000 mgs. for 4 more days, until I increased it to 500 mgs x 3 for a total of 1.5 grms/day taking 500 mgms/meal. I started noticing my gradual decrease in libido this time almost inmediately. I do not take any other medicines as such I'm definitely inclined to blame Niacine because I have taken Phytosterols for 3 years and my libido was fine. I'm a senior. Hope this will help!
What's to know about erectile dysfunction? Erectile dysfunction (ED) is a condition in which a man regularly finds it difficult to get or keep a firm erection. ED can be caused by psychological, physical, and medical reasons. This article looks at many of the causes, symptoms, and treatment options, which include medication, surgery, exercise, and diet. Read now
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