The way Viagra works, is to make better the stream of blood that runs around the human body by incrementing the amount of a protein known as phosphodiesterase 5 that is located in the penis and restricts the arteries in that zone. But, this protein is also located in two other zones of the body, the lungs and the right ventricle of the heart. Pulmonary hypertension influences the blood flow to the lungs, thus restricting the arteries and stretching the right ventricle of the heart. It is alike in diagnosis to high blood pressure, but the additional work the heart has to do to pump the protein around the human body in the blood often causes weariness, short-wind and in extreme cases can cause death of the patient. Having blood hypertension is easily controlled, and with the correct drug patients can increase their lifespan by more or less 20 years. However, if a patient suffers from pulmonary hypertension, their life is immensely shorter. In the most serious of cases, a patient may only have 3 years without the correct treatment, and this has a injurious result on their quality of life. No real test was executed with this medical condition, as it was hard to identify. Then, in 2002 experiment was conducted on several patients who were suffering from this condition. PreviousPrior tests with other medicine focused on healthy hearts, and did not achieve successful outcome because it was hard to strengthen the adequate ventricle combining with decreasing blood pressure and relaxing the lungs. This study included giving patients strictly controlled dosage of Viagra, and produced surprising outcome. Viagra was identified to be very successful in enhancing the heart function of patients who have a stressed right ventricle, and reduced the hypertension in their lungs. Because Viagra is absolutely safe and natural medication that works with the chemical imbalances in the blood flow, doctors at Glasgow
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