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Viagra - how does it work?

We all know what Viagra is used for and there's nothing really shameful about it. The attitude towards erectile dysfunction has changed a lot since the introduction of the first medication for treating this problem. Erectile dysfunction was always regarded as a taboo even in the liberal Western culture, and it was impolite to discuss such matters with anyone. However, Viagra has changed the way view this problem and today it's not very different from any other health condition a person may struggle with. That's because there finally is a way to overcome the problem, so there's no point in hiding it away. Millions of men use Viagra all over the globe and enjoy improved erection quality on a regular basis. However, the wide popularity and access to the drug left most of these people clueless on the way the drug works. They simply know that it helps overcome the problem and they don't need anything else. Still, it's very beneficial to know how Viagra actually works in order to understand the complexity of the mechanisms involved in such a seemingly simple process as male erection.

Before we learn how Viagra works let's first see how an erection is formed in order to understand the drug's role. When a man is sexually aroused the brain sends nervous signals through the spine to the penis. These signals trigger a complex chemical reaction that involves several enzymes, which ultimately relaxes the muscles at the base of the penile shaft that control the blood flow in the arteries connected to the penis. When the muscles become relaxed, the blood fills the spongy tissue of the penile shaft, forming an erection as we see it on the outside. The muscles then become tense again, preventing the blood from flowing back out. When the sexual intercourse is over, the muscle relaxation is triggered by another enzyme and the blood flows out, returning the penile shaft to its initial state. That's a general description of the process. But things get a bit more complex when erectile dysfunction comes into the scene.

In most cases erectile dysfunction is caused by conditions such as diabetes, hypertension, cardiovascular problems and others, which deteriorate blood vessels throughout the body and affect blood circulation in different parts, including the penile area. So when a man gets sexually excited and the chemical reaction relaxes the muscles to let the blood flow into the shaft, there's simply not enough blood to form a solid erection. The amount of enzymes required for triggering the reaction is also decreased due to health problems, so it's harder to maintain the proper chemical balance in the bloodstream. That's why the muscles at the base of the shaft don't work properly, letting less blood in and more out during an erection, which affects its quality. As a result the strength and duration of an erection is decreased, which we all know as erectile dysfunction. So the most evident solution would be maintaining proper control of the chemical reactions that would make the muscles work properly. And that's exactly what Viagra does.

Viagra's main components have a strong effect on the chemical balance of enzymes, which allows delivering better effects on the muscles. The muscles become more relaxed for a longer period of time to let more blood to flow into the spongy tissue, and then become tenser to prevent the outflow. This results in proper erections that last for longer periods of time, regardless of the negative effects certain health conditions have on the blood circulation in the penile area. However, since Viagra only affects the chemical reactions, which are triggered when a person is sexually aroused, taking the drug won't result in an automatic erection. It does not affect the person's libido in any way, as Viagra only improves the quality of the erections. So if the main problem of the patient is the inability to get aroused in the first place, Viagra won't deliver any effects.

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