The vast majority of brain-dead patients, about 97% according to foreign statistics, are able to last a few days or less than a week with the adequate help of a ventilator, and very few patients are able to last more than a week. In brain-dead patients, the entire brain is severely damaged and the respiratory center, located in the medulla oblongata of the brain, is not spared either. When the respiratory center stops working, the person has no breathing of his own, and without the use of a ventilator, the brain-dead patient’s heart will stop completely in a few minutes. There is no way to recover from brain damage in brain dead patients, and the medulla oblongata respiratory center will not recover either, and the patient will not be able to regain his breathing, which will progress to cardiac arrest and cardiac death in a few days.