Impotency, erectile dysfunction, sexual dysfunction are words all men, young of old, fear. In essence these words describe medical condition whose result is inability to get or to keep erection hard enough to have sex to their satisfaction.
Almost all men at least once in their lives suffer from erectile dysfunction. Occasional problems are nothing to be concerned about. There are many factors that can contribute to occasional sexual dysfunction. Stress, tiredness or drinking too much alcohol are just some of them. However it is estimated that at least one in ten men worldwide suffer from frequent and long lasting erectile dysfunction. This means that there are over 15 million men, between the age of 40 and 70, in U.S. alone affected with this problem. Erectile dysfunction is more frequent in older man. Number rise exponentially as older man are studied. With men between the age of 50 and 54, impotency is present among 20 percent of them, and 50 percent of man age 70 and above report problems.
Causes for erectile dysfunction are many both physical and psychological. It is thought that with 75 percent of man suffering from impotency cause is of physical nature. Physical causes that for erectile dysfunction include; diabetes, low blood flow to the penis or too much leakage of blood from the penis, penile nerve damage, hormone imbalance, alcohol and drug abuse including heavy smoking, high cholesterol and stroke.
Stress and anxiety from work or home, conflicts and dissatisfaction with the partner, depression, and unresolved sexual orientation are top psychological reasons for sexual dysfunction. Fear of failure can sometimes be so intense in men that it can actually affect their sexual performance. Erectile dysfunction caused by psychological problems is more intensified in men who have in the past had impotency issues. They are more inclined to worry about their past sexual performance, which removes pleasure of feeling sexual excitement.
It is estimated that only about 10% of man who suffer from long-standing and frequent reaction problems seek the help of the professionals. This is remarkable since effective treatments are available. One such medication is Cialis (Tadalafil).
Cialis (Tadalafil) is the second generation PDE5 inhibitor. PDE5 inhibitors work by inhibiting PDE5 enzyme found primarily in the arterial wall smooth muscle tissue of the penis and the lungs. Cialis (Tadalafil) relaxes blood vessels in the penis, thereby increasing blood flow and aiding in erection. Part of the physiological process of erection involves the parasympathetic nervous system causing the release of nitric oxide (NO) in the corpus cavernosum of the penis. NO binds to the receptors of the enzyme guanylate cyclase which results in increased levels of cyclic guanosine monophosphate (cGMP), leading to smooth muscle relaxation (vasodilatation) in the corpus cavernosum, resulting in increased inflow of blood and an erection.
Other drugs that operate by the same mechanism include Viagra (Sildenafil) and Levitra (Vardenafil). Compared to Viagra (Sildenafil), Cialis (Tadalafil) is more effective and better absorbed by body. A 20 mg dose of Cialis (Tadalafil) is comparable to a 100 mg dose of Viagra (Sildenafil).