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Heart is Courageous

Heart is Courageous DON’T worry too much about your heart, as so many healthy people seem to be doing nowadays; rejoice, rather, that nature has placed in your breast one of her most delicate yet durable marvels, an organ of surpassing patience, flexibility and strength. Rejoice, and try to understand how it works. It will

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brain evolution

Brain and memory

Brain and memory, the human nervous system brain, spinal cord and nerves contains what is substantially a wet-cell electric battery, generating a direct current of about a tenth of a volt roughly one-twentieth as much as a torch battery. The electric charge is created by two body chemicals, sodium and potassium, operating on nerve tissues

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