The concentrated fog many HS and college athletes and staff are breathing when they run onto the field at the beginning of a game is a big cloud of CO2. Last I heard, that’s what our bodies are trying to eliminate. Google fog machines and they’re all based, basically, on a big CO2 fire extinguisher. Why would breathing that crap help any athlete? I’m not a medical physiologist, but if I were consulting for an any athlete, I would recommend avoiding that stuff. Let’s, instead, take a few puffs of O2 and toss up some confetti.
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