Oxygen is the "power source" of the heart.
Oxygen is the key substance of human metabolism and the first need of human life activities. Breathing oxygen is converted into available oxygen in human body, which is called blood oxygen. Blood carries blood oxygen to input energy to the whole body, and the delivery of blood oxygen is closely related to the working state of the heart and brain. The stronger the pumping ability of the heart, the higher the blood oxygen content. The stronger the blood transfusion ability of coronary artery, the higher the blood oxygen concentration delivered to the heart, brain and whole body, and the better the running state of important organs of human body.
Two. Oxygen fountain
With the increasing demand for fresh oxygen, oxygen fountain bars have been established in big cities such as Los Angeles. In the oxygen fountain bar, people hold transparent oxygen bottles with exquisite external suction devices. With a gentle suction, pure oxygen in the bottles will gush out. Oxygen with lemon or other fragrance can be continuously delivered for 20 minutes. In addition, other oxygen-related products are constantly emerging in the United States, such as various oxygenated water and oxygen-related products.
Three. Negative effects of excessive inhalation of oxygen
As early as the middle of19th century, British scientist Paul? Bert first discovered that if animals breathe pure oxygen, it will cause poisoning, and so will humans. If people are exposed to pure oxygen above 0.05 MPa (half atmospheric pressure), it will have toxic effects on all cells. If the inhalation time is too long, "oxygen poisoning" may occur. The capillary barrier of the lung is destroyed, which leads to pulmonary edema, pulmonary congestion and bleeding, which seriously affects respiratory function. In the pure oxygen environment of 0. 1 MPa( 1 atmospheric pressure), people can only survive for 24 hours, and then pneumonia will occur, which will eventually lead to respiratory failure and suffocation. In the high-pressure pure oxygen environment of 0.2 MPa(2 atmospheres), people stay for 1.5 hours and 2 hours at most, which will cause brain damage. Amnesia If 0.3 MPa(3 atm) or even higher oxygen is added, people will have brain cell degeneration and necrosis, convulsions and coma within a few minutes, leading to death.
In addition, excessive oxygen inhalation will also promote life aging. Oxygen entering the human body reacts with oxidase in cells, which can generate hydrogen peroxide and then become lipofuscin. This lipofuscin is a harmful substance that accelerates cell aging. It accumulates in the myocardium, aging the myocardial cells and reducing heart function. Accumulation on the wall of blood vessels leads to aging and hardening of blood vessels; Accumulate in the liver and weaken liver function; Accumulate in the brain, causing mental decline and memory decline, and people become dementia; Accumulate on the skin and form senile plaques.