ED can occur when any of these steps is disrupted, including the nerve pulses to the brain and the response of veins and arteries in and near the corpora cavernosa. ED can then lead to repeated failures in having to keeping an erection that is firm enough for sexual intercourse. The risk for ED increases when there is damage to nerves, arteries, smooth muscles and fibrous tissues, resulting from such conditions as diabetes, chronic alcoholism, cardiovascular disease and neurological problems. Such conditions are behind approximately 70 percent of ED cases, according to National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

According to NIDDK, ED should not be confused with "impotence." Impotence covers other problems that interfere with sexual intercourse and reproduction, such as lack of sexual desire, problems with ejaculation and the inability to orgasm. It is estimated that 15 million to 30 millions men are affected by ED, depending on which definition is used.

There are many ways to treat ED, including psychotherapy, drug therapy, vacuum devices and surgery. However, on the nutraceuticals front, there are many options that may also aid this problem. Even NIDDK reported, "Most physicians suggest that treatments processed from least to most invasive."

Yohimbe  is one herb FDA has found to be promising, calling results from preliminary animal studies "encouraging"  because of its effects at stimulating nerve centers along the spine that control erection. 13

Yohimbe has shown to have very male-specific effects in a clinical setting. These include preventing the decrease in ejaculatory capacity by blocking the central alpha2-adrenoceptors that have stimulatory effects on ejaculatory function. 14 

Yohimbe is not new. I have been recommending Yohimbe for athletics over the last 15 years. Yohimbe is a great testosterone builder.  The testosterone in athletics increases strength, muscle hardest and burns body fat. Today Yohimbe is being used in most Natural Viagra products for it's ability to increase blood flow especially to the genital area. When blood flow is reduced, erections become difficult if not impossible.   

To stay away from pharmaceutically enhanced sexual health, researchers have enhanced investigated the nitric oxide-promoting nutracetical, L-Arginine. In fact, a combination of Yohimbe and L-Arginine is currently undergoing phase III studies.15 It has already been seen that short-term yohimbe plus L-Arginine supplementation may aid mild to moderate ED. 16

Another herb helping out in this area is an extract form the Tribulus terrestris L plant, which produces protodioscin, a component that has been shown to enhance eractions. 18

DHEA supplementation may be of particular benefit to patients suffering from ED as well as hypertension. 19 After giving 27 patients with hypertension and ED 50 mg daily of DHEA for six months, frequency of penetration was reported to have increased.

Ginseng, both American and Asian, are also having an impact in the area of penile functions. Researchers from Southern Illinois University, Carbondale, reported that ginseng's ginsenoside components aid sexual function by benefiting the central nervous system and gonadal tissue rather than acting on hormonal deficiencies. 22

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