I already know that the heart's function is to provide blood to the body by pumping blood through arteries, and the blood comes back to the heart through veins. I knew that the four chambers of the heart are the right atrium, right ventricle, left atrium and the left ventricle. Ultimately the goal of the cardiovascular system is to provide oxygenated blood to the rest of the body. I assume that stress is presumably a negative force that has bad effects on the human body. I never learned exactly why this is the case. I also learned that mental health awareness is increasingly becoming important in society.
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