Shindel, A. W., Xin, Z.-C., Lin, G., Fandel, T. M., Huang, Y.-C., Banie, L., … Lue, T. F. (2010, February 5). Erectogenic and neurotrophic effects of icariin, a purified extract of horny goat weed (Epimedium spp.) in vitro and in vivo. The Journal of Sexual Medicine, 7(4), 1518-1528. Retrieved from http://onlinelibrary.wiley.com/doi/10.1111/j.1743-6109.2009.01699.x/full
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.
Those looking to crank up their body's fat-burning to the next level may stack yohimbine HCL with ephedrine HCL and caffeine, creating the ECY stack. Yohimbine is a powerful stimulant that acts on different metabolic pathways compared to caffeine and ephedrine. The most common dosage for each compound in this stack is 5mg of yohimbine HCL, 200mg caffeine, and 25mg ephedrine HCL two to three times per day.
Wistar rats (From Medical Research Institute, Colombo) were obtained and kept in a well ventilated animal house under natural dark light cycle (temperature 28-30°C, humidity; 50-55%). Animals were housed in groups (four per group) until they reached sexual maturity (150-200 g). They were provided with pelleted food and water. Male rats were permitted access to receptive females on three separate occasions and then screened for sexual proficiency. Male rats who displayed consistently vigorous sexual activity were selected for the study.
Prostate problems are most common in older men, but it’s never too early to start looking after your prostate! Problems such as BPH (enlarged prostate) and prostatitis can cause unpleasant symptoms such as frequent urination, weak urine stream, difficulty urinating and sudden urges to urinate, which can really get in the way of daily life and interrupt sleep.

To maximize efficacy, you should consume this stack in a fasted or semi-fasted state and at least 6 hours before bedtime. This stack is going to significantly increase your heart rate and blood pressure so be watch out for overexertion if you choose to take the ECY stack immediately before an intense weightlifting session. Some users also choose to alternate consuming EC and EY to obtain some of the positive effects without being overstimulated.

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.

None of the parameters showed a significant difference between controls and the group treated with 1 mg of zinc. The percentage of males who engaged in intromission (% intromitted), was significantly reduced in 10 mg/day zinc group; only three animals showed the particular behavior. Similarly percentage of rats which ended up with ejaculation significantly decreased with the high dose (two out of eight). Libido index of the highest zinc treated group was significantly low compared to controls; (38 % vs. 88 %, P < 0.05). Number of mounts and intromissions was also significantly decreased in the same group; Number of mounts: 1.58 (SEM 3.16) vs. 11.0 (SEM 1.59) and number of intromissions 2.13 (SEM 4.27) vs. 11.0 (SEM 1.59), P < 0.05).
In a study with human subjects, Kruger et al. have reported that acute changes in the normal physiological levels of PRL led to a significantly prolonged ejaculatory latency, but minor reductions of sexual drive and function.[19] Although zinc induced elevation of PRL was not an acute effect, findings similar to the human study (prolongation of ejaculation and mild reduction of libido index with medium dose of zinc) were observed in this study. However, the prolongation of ejaculatory latency may not be merely due to effects of elevated PRL because elevated PRL levels are known to be associated with the negative aspects of sexual activities (decreased sexual desire and frequency of sexual intercourse).[20]
Hi there , I take magnesium every day but I still find that I’m not able to feel ” turned on” massively! Arrrgh! Anything you guys recommend? I love my other half with all my soul and i don’t want our love life to not be what it should be because I’m dodging it! Help help help! I weighed myself I’m 74kgs! Blimey! I do don’t look like I am but I am!! What’s good for helping my hormones with weight loss too??! X
In the Hong Kong study, the researchers postulated that niacin might be as beneficial as statins on erectile function, and have other related benefits too. Niacin is known to produce a flushing effect (see “Toleration Despite Adversity,” above), which is related to prostaglandin D2 (PGD2) release in the skin. This can lead to vasodilation and concomitant flushing. The production of PGD2 can also occur in macrophages, a type of protective white blood cell. Consequently, when PGD2 production is induced by niacin, it may affect all body tissue, including the cavernosal tissue in the penis. Indeed, PGD2 is one of the potential agents causing the vasodilation and engorgement of cavernosal tissue, thereby leading to erection. Thus, niacin improves erectile function by stimulating the production of PGD2.
These are not currently approved by the FDA for ED management, but they may be offered through research studies (clinical trials). Patients who are interested should discuss the risks and benefits (informed consent) of each, as well as costs before starting any clinical trials. Most therapies not approved by the FDA are not covered by government or private insurance benefits.
Partner preference index in both 5 mg zinc treated group and controls was positive. In the control group, time spent by males, with estrous and diestrous females, was 21.75 sec. (SEM 2.26) and 13.62 sec. (SEM 1.05) respectively. In the zinc treated group they spent 20.87 sec. (2.09 SEM) with estrous and 14.37 sec. (SEM 0.70) with diestrous females. The PPI of controls and zinc treated group was 8.12 Sec. (SEM 2.32) and 6.50 Sec. (SEM 1.76) respectively. There was no significant difference between the two groups, P > 0.05.
The researchers reasoned from other studies that when the degree of endothelial dysfunction and atherosclerosis are more severe, the effects of niacin and statins as lipid-lowering agents are also more apparent. Their current study seemed to bear this out. Also, in another study assessing the effect of a PDE5 inhibitor in patients using a statin, patients with higher baseline serum LDL-C had better improvement in erectile function after the use of a PDE5 inhibitor. This supports the researchers’ hypothesis that patients with potentially more serious endothelial dysfunction, such as those with higher LDL-C levels, may have better response to the combination usage of a PDE5 inhibitor and niacin.

A cold slice of watermelon can do more than just satisfy thirst and hunger during the warm summer months; it can help with bedroom satisfaction. Citrulline, the amino acid found in high concentrations of watermelon, is found to improve blood flow to the penis. A 2011 study revealed men who suffered from mild to moderate ED and took L-citrulline supplementation showed an improvement with their erectile function and were very satisfied. Natural watermelon juice, or “nature’s Viagra,” can also be easier on the stomach, since taking pills like Viagra can cause nausea and diarrhea.

When experiencing difficulty in achieving an erection, it’s important to figure out if you are able to achieve an erection at all or if this happens only when you are with your partner. If you are unable to achieve an erection on your own, this may be more related to a medical and/or physical condition. Examples of this could include heart conditions, neuromuscular disorders, or pelvic pain. To evaluate if this is the cause of your condition, you should follow-up with your physician to examine your cardiovascular, neurological, and musculoskeletal system. From here, they may recommend medications such as Viagra or Cialis, or sometimes a referral to a urologist.
Taking zinc in supplement form is just one of many treatments for those looking for help with ED. Many men use supplements either to replace prescription medications like Viagra and Cialis, or to enhance the effectiveness of these medications. Some other natural supplements aimed at relieving ED symptoms include Korean red ginseng, L-Arginine, carnitine, and DHEA.
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