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Heat and cold

2 guides. Each one sets out the rules, grades the evidence for every claimed outcome and shows who backs or doubts it.

Cold plunge and cold exposureA cold plunge is a brief, deliberate immersion in cold water, usually 10 to 15°C (50 to 59°F) for 1 to 5 minutes.Debated
SaunaSauna bathing means sitting in dry heat, usually 80 to 100°C (176 to 212°F), for 5 to 20 minutes or more.Promising

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