In the field of pharmacology, potency is a measure of drug activity expressed in terms of the amount required to produce an effect of given intensity. Secondary impotence, defined as the loss of erectile function after a period of normal function, is more common. A physician measures the latency between squeeze and contraction by observing the anal sphincter or by feeling it with a gloved finger inserted past the anus. Now it is also defined as the inability to maintain an erection or ejaculate. These studies showed that Tribulus helps treat impotence caused by low testosterone levels or an imbalance in the body's level of sex hormones. This device works quite well, although some men complain about the discomfort of the elastic ring in addition to the hassle of, well, pumping up. Impotence caused by psychological factors is often temporary; it lasts as long as the underlying factor is still there. The man's comfort level is also frequently a factor, especially in maintaining an erection. There are two methods for measuring changes in penile rigidity and circumference during nocturnal erection: snap gauge and strain gauge.
Statistics – a stubborn thing, and she says that about 80% of the male population, faced with the problem of loss of potency, sooner or later, turn and become regular fans of Viagra.
Although they are often dismissed as ineffective solutions to impotence, more and more clinical research studies have found that herbs can help impotent men. 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. It is estimated to affect between 10 million and 15 million men in the United States alone. The same goes for alcohol and narcotics, like heroin and cocaine. Impotence was once solely defined as the inability to achieve an erection. During the late 16th and 17th centuries in France, male impotence was considered a crime, as well as legal grounds for a divorce. When pharmacological methods fail, a purpose-designed external vacuum pump can be used to attain erection, with a separate compression ring fitted to the penis to maintain it. Their absence may indicate a problem with nerve function or blood supply in the penis. It is estimated that over 70% of all serious impotence cases are the result of diabetes, kidney diseases, multiple sclerosis, endocrine disorders, vascular diseases, and high blood pressure, as well as neurological diseases. Men with primary impotence have never had sufficient erections for satisfactory intercourse. It works as follows: The cylinder is placed on the penis and the pump is then used to draw air out of the cylinder. Surgery on the spinal cord, prostate, bladder, or pelvis can lead to impotence by damaging essential nerves, tissues, muscles, or arteries. It is normal for a man to have five to six erections during sleep, especially during rapid eye movement (REM). Impotence can be treated — sometimes even without drugs. This form typically comes on gradually and is usually more easily treatable than primary impotence. It turns out that a man often gets multiple erections throughout the night.