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The Four Humors, Explained



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The humoral theory was the main theory of health and disease for nearly 2,000 years. The idea that blood, phlegm, black bile, and yellow bile could influence your health and personality were the foundation for treatments like bloodletting and leeches, but also the first inklings of psychiatry. In this video, Patrick Kelly will explain the theory of the four humors in depth, and how it was replaced by cell theory in the 1800s.

☠️NONE OF THE INFORMATION IN THIS VIDEO SHOULD BE USED AS MEDICAL ADVICE OR OPINION. IT IS FOR GENERAL EDUCATION AND ENTERTAINMENT☠️

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Health
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