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"I'd Spend A Million Dollars To Get Six Seconds Better At The 800": Riley Witt Of Bicarb 3.0 On Hot Baths That Rival Microdosed EPO, Threshold Reps At 4:00 Mile Pace & Other Science Truths

Riley Witt says a hot bath beats a microdose of EPO.

That's where this one opens, and it doesn't slow down. Riley walks through passive heat training—45 minutes at 104 degrees, four or five times a week, and the plasma volume adaptations that come with zero skeletal strain. He explains why water cooks you faster than a sauna, why going straight from a run into the heat multiplies the effect, and why a hot bath before bed will wreck your sleep instead of helping it.

From there: electrolytes as the most overhyped supplement on the market, why a real sports drink needs sugar, and the…

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