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========== [MUSIC] [MUSIC] When mummifying their kings and queens, ancient
Egyptians would remove the brain and all the internal organs, except for one: The heart. Believing it held all thought and feeling,
the deceased would need it in the afterlife, when they… rose again. By 2000 BC Chinese doctors had uncovered the
heart’s role in pumping blood throughout the body, Western thinkers from Aristotle
to the Renaissance believed the heart governed the emotions, a notion so powerful that it
still persists today, in… a different form. [MUSIC] The heart symbol’s resemblance to the real
thing is… debatable. Its origins are uncertain, but we see it as far back as the 6th century
BC. Coins from Cyrene, in what is now Libya, carry the familiar emblem, represen...