The way Viagra works, is to improve the flow of blood that runs around the body by making grow the amount of a protein known as phosphodiesterase 5 that is located in the phallus and presses the arteries in that area. Nevertheless, this protein is also found in two other zones of the body, the lungs and the right ventricle of the heart. Pulmonary hypertension affects the stream of blood to the lungs, thus restricting the arteries and stretching the right ventricle of the heart. It is similar in diagnosis to high blood pressure, but the extra exercise the heart must 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 high blood pressure is easily manageable, and with the adequate medicine patients can increase their lifespan by more or less twenty years. Nevertheless, if a patient has pulmonary hypertension, their life is immensely decreased. In the most serious of cases, a patient may only have 3 years without the adequate medicine, and this has a injurious effect on their life quality. No real testing was executed with this medical state, as it was difficult to identify. Then, in 2002 experiment was conducted on a number of patients who were suffering from this illness. ForegoingPreceding tests with other drugs focused on healthy hearts, and did not achieve successful outcome because it was difficult to strengthen the adequate ventricle combining with decreasing blood pressure and relaxing the lungs. This experiment involved giving patients controlled doses of Viagra, and lead to surprising results. Viagra was seen to be highly successful in improving the heart function of patients who have a stressed right ventricle, and reduced the high pressure in their lungs. Because Viagra is absolutely sure and plain medicine that works with the chemical disbalance in the blood run, doctors at Glasgow’s Yorkhill Children’s Hospital gave this drug to babies who suffered from severe pulmonary hypertension. The outcome was astonishing. Many of these children would not have made it without this implementation of Viagra, and the treatment has provided a breakthrough with making better patient medication. Viagra is also helpful in cases such as lung transplant surgery, where the right ventricle can often collapse if the lung is rejected. Viagra is considered one of the most popular and successful treatment in conditions such as erectile dysfunction, and now was proved a success in treating pulmonary hypertension. Widening the blood vessels and alleviating the breathing troubles of the patient is a modern breakthrough. Because Viagra has no evident side effects, it can now be given to many patients of all ages who experience different blood related medical conditions.