I drank only pure water during my runs at 95°F: the day I ended up dizzy after a session, I understood what my sweat had been draining away for weeks

I drank only pure water during my runs at 95°F: the day I ended up dizzy after a session, I understood what my sweat had b...

A runner collapsed with dizziness after weeks of hydrating with pure water during 95°F sessions—only to discover their sweat had been silently draining away essential electrolytes. Plain water alone isn’t enough during intense heat; your body needs sodium to maintain the delicate balance that keeps you upright.

Why Plain Water Every 10 Minutes Is Making Your Summer Runs Worse: The Sweat Test That Changed Everything

Why Plain Water Every 10 Minutes Is Making Your Summer Runs Worse: The Sweat Test That Changed Everything

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.

Why Chugging Water Mid-Run Is Sabotaging Your Heart Rate Data — And Your Performance

Why Chugging Water Mid-Run Is Sabotaging Your Heart Rate Data — And Your Performance

Your heart rate monitor has been trying to tell you something: chugging water mid-run isn’t helping. A deeper look at cardiovascular drift, plasma volume, and the science of steady hydration reveals why small, regular sips outperform large gulps — and how to reclaim your recovery window.