Methodism’s cofounder Wesley published a bestselling self-help compendium of remedies, subtitled An Easy and Natural Method of Curing Most Diseases—onions and honey cure baldness, apples prevent insanity. A Presbyterian minister named Sylvester Graham (of the eponymous cracker) led a movement based on his conviction that meat and spices were unhealthy and, maybe worse, sexual stimulants. The cofounder of the new Seventh-day Adventist denomination, who’d had visions of the end of the world, also had a vision of a hospital devoted to water cures and hired an Adventist physician named Dr. John
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