Gary Brecka explains how 30 to 90 seconds of cold water at the end of your shower activates brown fat, spikes dopamine, and improves insulin sensitivity. Research in Cell Reports Medicine backs the metabolic benefits. Start with whatever temperature you can handle and breathe slowly.
Cold exposure has exploded in popularity for a good reason. It improves blood flow, spikes dopamine, boosts metabolism, and trains your body to handle stress. According to research published in Cell Reports Medicine, cold exposure activates brown adipose tissue, which burns calories and improves insulin sensitivities. So here's how you do it. End your shower with 30 to 90 seconds of cold water. Start with what you can tolerate and build up. Breathe slowly, don't tense up, and relax into that cold water. Here's why it works because cold exposure is a form of hormetic stress stress that you stronger. It triggers a cascade of beneficial hormonal and neurological adaptations that leave you feeling sharper, calmer, and more resilient.
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