Electrolyte packets are everywhere — but are they actually doing anything for most of us, or is it just really good marketing on top of salt water? In this episode, we break down what electrolytes actually are (and why sodium is the one that really matters), what the research shows about performance, hydration, and muscle cramps, and why more isn't always better — overhydration can be just as risky as dehydration. We also get specific about who genuinely benefits from electrolyte supplementation Online coaching www.shanewalshfitness.com/onlinecoaching