Cold plunge therapy scene showing heart rate emphasis during immersion at 55°F
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Cold Plunge and Heart Rate: What Happens to Your Body During Immersion?

Introduction What happens to your heart rate during a cold plunge? The question is more than curiosity—it’s the key to understanding how your body reacts to extreme stimuli and how you can harness that stress for resilience, recovery, and overall health. Whether you’re stepping into a plunge tub for muscle recovery, stress relief, or nervous…