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How does the heart work?

The heart is an essential organ of the human body. Scientists say that with age, the heart increases in size directly proportionally to the growth of a persons own fist. Ancient people thought that the heart was the chief organ which controlled the whole body and so people used to believe everything related to the human condition and relationships was connected with the heart. Now, of course, we understand that this is the work of the brain. Certain expressions emerged, such as “stout-hearted,” “a warm-hearted person,” and “I love you with all my heart,” though it would be more accurate to say “I love you with all my brain.”


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