✗ The myth everyone repeats
Removing blood from patients balances the four humors and cures many diseases including fever, inflammation, and infection.
✓ What is actually true
Bloodletting, practiced for 2,500 years based on humoral theory, actually weakened patients and increased infection risk. The four humors theory was completely incorrect. Modern medicine replaced this with understanding of actual pathogens and physiological mechanisms. Blood is now drawn only for diagnostic testing and specific conditions like hemochromatosis.
Reception
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