The way Viagra works, is to improve the flow of blood that runs around the body by incrementing the level of a protein known as phosphodiesterase 5 that is located in the phallus and squeezes the arteries in that area. But, this protein is also found in two other areas of the human body, the lungs and the right ventricle of the heart. Pulmonary hypertension influences the blodd stream to the lungs, therefore restricting the arteries and stretching the right ventricle of the heart. It is similar in diagnosis to blood hypertension, but the extra exercise the heart must do to pump the protein around the body in the blood often causes tiredness, dyspnea and in extreme cases can bring about death of the patient. Having blood hypertension is easily manageable, and with the correct drug patients can increment their life by approximately twenty years. Nevertheless, if a patient suffers from pulmonary hypertension, their life is significantly decreased. In the extreme cases, a patient might only have 3 years without the right medication, and this has a damaging effect on their life quality. No essential testing was executed with this medical condition, as it was difficult to determine. Then, in 2002 experiment was executed on a number of patients who sufered from this illness. ForegoingPrior tests with other medication focused on healthy hearts, and did not get successful results because it was hard to strengthen the right ventricle combining with decreasing blood pressure and unnerving the lungs. This study included giving patients controlled dosage of Viagra, and produced unexpected results. Viagra was identified to be extremely successful in improving the heart function of patients who have a affected right ventricle, and reduced the hypertension in their lungs. Because Viagra is a completely sure and natural treatment that works with the chemical imbalances in the blood run, doctors at Glasgow's Yorkhill Children's Hospital prescribed this medication to children who were suffering from extreme pulmonary hypertension. The result was astonishing. Many of these babies would not have made it without this interference of Viagra, and the treatment has provided a breakthrough with improving patient drug. Viagra is also useful in cases such as lung transplant surgery, where the right ventricle can often fail if the lung is rejected. Viagra is thought to be one of the most famous and successful treatment in states such as erectile dysfunction, and now it has been proved to be successful in therapy for pulmonary hypertension. Widening the blood vessels and alleviating the breathing difficulties of the patient is a modern outbreak. Because Viagra has no notable side effects, it can now be given to many patients of all age categories who experience various blood related medical conditions.