blood and sea water are no
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You’re born with a little over a pint of it, by adulthood you’re up to four or five quarts, and if at any point you suddenly shed more than a third of your share, you must either get a transfusion or prepare to meet your mortician.
Human cultures have long recognized that blood is essential to life and have ascribed to it a vast array of magical powers and metaphorical subroutines. Blood poultices and blood beverages were said to cure blindness, headaches, gout, goiter, worms and gray hair. The Bible mentions blood more than 400 times, William Shakespeare close to 700. It’s “all in the blood,” your temperament, your fate. Are you a blue-blooded Mesopotamian princess or a red-blooded American male?
Yet to scientists who study blood, even the most extravagant blood lore pales in comparison to the biochemical, evolutionary and engineering marvels of the genuine article.