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The Importance of Cold Plunge
"It's like people are hearing that this is really good for your health. You should go cold plunge, et cetera," he says. "You don't even actually need ice to get it to around 50, 55." In six hours, dopamine levels are up two to three times above baseline with exposure at 50 degrees or below. He does the springs, the sauna, the cold bath, then work out.