Which diseases couldn't be easily explained by the Theory of the Four Humours?

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Which diseases couldn't be easily explained by the Theory of the Four Humours? (They affected everybody in the same way and weren't cured by traditional humoural treatments, like blood-letting and purging)



Epidemics of the plague and other killer diseases, such as smallpox, the Great Pox (syphilis) and sweating sickness

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