Viagra (Sildenafil Citrate)

But first let's look into the anatomy of an erection... There are two sponge - like, cylindrical structures in the penis. They run through all the length of an organ, parallel to the tube carrying urine and semen. During sexual arousal, the nerve impulses promote the blood flow to the cylinders in order to increase the usual amount of blood several times. This increased amount of blood forces sponge-like structures to expand and as a result produce an erection. Penis gains a straighter and stiffer shape. The higher is the sexual arousal, the stronger and longer is the erection, since more blood flows into the penis and a small amount flows out of it. As the sexual act finished, after ejaculation, the amount of blood flows out of a spongy tissue and penis returns to its previous shape and size.

Erectile dysfunction or impotence is inability to gain an erection and sustain it in order to perform a sexual act. Unfortunately that is not one of the rare disorders. Approximately 1 of 10 men suffers from Erectile dysfunction (ED) and the causes vary from physical aspects to psychological ones. Luckily that problem can be treated and the pharmaceutical market does not close eyes on it. But in order to receive good results from the treatment, it is necessary to identify what has caused Erectile Dysfunction.

As it was mentioned above, the reasons are different. Approximately three quarters of men with ED have this problem due to physical problems that influence on blood supply to the penis. However, the connection between physical problems and psychological ones is rather fragile. When having health problems, people may become depressed, stressed that may also negatively affect the erection.

The following are some examples of health problems that may lead to erectile dysfunction: High blood pressure, heart diseases, diabetes, obesity, atherosclerosis. Other reasons could be: prescribed medications, prostate cancer treatment, surgeries in pelvic area or spinal cord, Parkinson's disease, Peyronie's disease. Alcoholism and smoking play also a rather big and negative part.

Another important aspect is psychology. Human brain often plays a key role in different situations as well as in erection. A lot of things can lead to erectile dysfunction, such as: stress, depression, fatigue, anxiety, problematic family or personal relations.

It is obvious that it is much better to take care of your physical and psychological states, try to prevent negative conditions rather than start a long and unpleasant treatment.