Seth Archuleta

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30 fast breaths. Each inhale should take about a second, but you should not force the exhale. Instead let it flow out naturally. Your breath should sound like you’re at the peak of a sprint just a few seconds shy of having to slow down. Pretty soon you’re going to feel a little dizzy; this is normal.
What Doesn't Kill Us: How Freezing Water, Extreme Altitude, and Environmental Conditioning Will Renew Our Lost Evolutionary Strength
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