Although they are often dismissed as ineffective solutions to impotence, more and more clinical research studies have found that herbs can help impotent men. It is estimated that about 10% to 20% of impotence cases are the direct result of various psychological factors, such as low self-esteem, depression, and — especially — stress and anxiety (general and performance anxieties). It is estimated that between 50% and 60% of diabetic men are impotent. It turns out that a man often gets multiple erections throughout the night. The current diagnostic and statistical manual of mental diseases (DSM-IV) has included a listing for impotence.
Although middle-aged and older men are more likely to be impotent than younger men, impotence can strike at any adult age. Stimulation of the penile shaft by the nervous system leads to the secretion of nitric oxide (NO), which causes the relaxation of smooth muscles of corpora cavernosa (the main erectile tissue of penis), and subsequently penile erection. A note of caution: Although there are many Tribulus extracts available over the counter today, almost all of these have been found not to contain any significant amount of the active ingredient.
Tests such as the bulbocavernosus reflex test are used to determine if there is sufficient nerve sensation in the penis. Men with primary impotence have never had sufficient erections for satisfactory intercourse. This form of impotence is rare and often caused by extreme psychological conditions, such as intense fear of intimacy, extreme feelings of guilt and severe anxiety. More than nine clinical studies performed by six universities and academic hospitals on this purified extract have confirmed the herb's beneficial effect. More drastically, inflatable or rigid penile implants may be fitted surgically. It's important to realize that impotence may be a symptom of a more serious health problem, so if you're impotent, seek professional medical help immediately. Their absence may indicate a problem with nerve function or blood supply in the penis. More drastically, inflatable or rigid penile implants may be fitted surgically. There are two methods for measuring changes in penile rigidity and circumference during nocturnal erection: snap gauge and strain gauge.