5. Love Conquers All

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In the 7th Century it appears that being in love was considered an illness. Physicians of the time arrived at the conclusion that the most important treatment for a man in love was to make certain that his brain remained moist. To ensure this, the man was forced to “smell the menstrual cloth of his beloved or inhale the stinking embers of her burned feces.” That’s a treatment a lot of dogs probably wouldn’t take offense to but most humans would probably find those ideas rather offensive.