Most amateur runners hydrating in 35°C heat commit the same dangerous mistake: drinking too much plain water without electrolytes. This can trigger exercise-associated hyponatremia, a condition more common than heat exhaustion itself. The solution isn’t more water—it’s smarter hydration with sodium.
You’ve been doing hydration wrong. Drinking plain water every 10 minutes feels smart, but it’s actively diluting the electrolytes your body desperately needs during summer runs. A simple sweat test reveals the shocking truth about sodium loss that most runners completely miss.
For years, you’ve grabbed a glass of water before heading out for your summer run—but a marathon coach reveals this common ritual is costing you performance. The secret isn’t drinking more water; it’s understanding when, what, and how much to hydrate. Learn the one change that transforms your summer running.
