Viagra is used to treat impotence in men. Viagra increases the body's ability to achieve and maintain an erection during sexual stimulation. Viagra does not protect you from getting sexually transmitted diseases, including HIV.
Under normal circumstances, ejaculation occurs as a result of a process that can be divided into three stages:
1. A man is sexually excited.
2. In response to stimulation penis eregiruet.
3. Stimulation of the penis leading to ejaculation.
Sounds simple enough, but in the life of the second paragraph is not always satisfied, and therefore before ejaculation is not reached. Why? For the answer to this question will have to go a little further into the anatomy and the actual process of erection.
Typically, movement of any part of the body, we use a muscle. Acts is this: we are thinking of going, the muscles contract, part of the body is moving. But with the penis, things are different. During erection not used muscles, and blood pressure.
The easiest way to compare an erection to the process of pumping air into the balloon. Only, instead of a ball in this case will cavernous body but instead of air - blood.
Adjustable erection arteries and veins. First fill the erectile tissues with blood, and the second - the blood withdrawn from them. While there is no erection - narrowed arteries and the veins are working on the outflow of blood, not allowing it to build up in the penis. But once a man is excited - the artery open, allowing blood to fill cavernous bodies. This leads to an erection.
If the arteries do not open properly - erection will not. This - the main cause of erectile dysfunction (ED). To solve this problem it is necessary to open the artery.
When you have erectile dysfunction (ED), also known as impotence, you have a problem getting or maintaining an erection long enough for sex. ED happens when not enough blood flows to your penis when you are sexually stimulated. ED may not be the same for all men. Some men are not able to get an erection at all. Some men can get an erection, but it's not hard enough for sex, and other men get a firm erection but lose it before or Cialis online.
|Physical causes of erectile dysfunction||Physical causes of erectile dysfunction are not only related to the disease. There are many other possible causes, including:|
|Surgery||Surgery: surgery for prostate cancer and bladder cancer may damage the nerves and tissues required for erection. Sometimes the problem is cleared, usually within 6 to 18 months. But the damage can be permanent. If this occurs, there are treatments to help restore your ability to have an erection.|
|Injuries||Injuries: injuries to the pelvis, bladder, spinal cord and the penis that require surgery can also cause ED.|
|Hormonal problems||Hormonal problems: testosterone and other hormones fuel the sexual desire of a man and a mismatch can get rid of his interest in sex. Causes include tumors of the pituitary, kidney and liver diseases, depression, hormonal treatment of prostate cancer.|
|Venous leak||Venous leakage: To maintain an erection, the blood flowing into the penis must remain in your penis. If it backs up too quickly - a condition called venous leak in which the veins of your penis does not contract properly - you will lose your erection. Injuries and diseases can cause a venous leak.|
|Tobacco, alcohol, or drugs||Tobacco, alcohol, or drugs: All three can damage your blood vessels. It is therefore difficult for blood to reach the penis, which is essential for erection. If you have hardened arteries (arteriosclerosis), smoking will dramatically increase your risk of erectile dysfunction.|
|Prescription drugs||Prescription drugs: There are over 200 medications that can cause ED.|
|The enlargement of the prostate||The prostate enlargement: enlargement of the prostate, a normal part of aging for many men, may also play a role in ES.|
What you should know before you order Viagra online
As mentioned, the use of Viagra (request) be careful. Viagra can not simply be taken by everyone. The reason of this is in the Operating the active ingredients of this medicine: Sildenafil. Anyone planning to order Viagra online, Sildenafil should know what is and what dangers can hide.
The operation of Sildenafil
When Sildenafil is absorbed through the stomach wall in your blood, it prevents the breakdown of vasodilating substances produced by the body during sexual stimulation. This helps to keep these substances in the body longer in greater concentration. And then also in the penis and erectile tissue of the penis. The more blood there in the erectile tissue of the penis, it will become steeper. Viagra only works when you're excited. So it is not a sexual stimulant that you can order online easily.
When not to order Viagra online?
The use of Viagra is not recommended in some cases. We give you a few examples:
When you have severe heart or liver problems
Recently, after a heart attack or stroke
In case of ulcer
If s sickle cell anemia
When you use drugs, in which there are nitrates. In combination with sildenafil, it can seriously lower your blood pressure
In combination with drugs that release nitric oxide. This can also cause a severe reduction in blood pressure.