Hydration
Fitness and nutrition articles on Hydration, summarized from trusted, evidence-based sources: PubMed, Examine.com, ACSM, Mayo Clinic, Harvard Health, WHO.
Sweat Sodium Testing: Is It Worth Personalizing Your Hydration Plan?
Sweat sodium loss varies up to 10x between athletes, and a 2026 study found at-home sweat patches often fall short of lab accuracy.
Hydration and Electrolyte Strategy for Endurance Athletes: Scheduled vs. Thirst-Driven Drinking
New endurance hydration guidance: personalized sweat-rate testing beats fixed schedules, with sodium replacement and thirst-driven drinking.
Why Sodium Loss During Sweat Varies So Much Between Endurance Athletes
Sweat sodium loss varies nearly tenfold between athletes, and wearable sensors now make individualized hydration plans possible.
Hydration and Electrolytes for Exercise: The ACSM Guide
ACSM fluid guidelines: how much to drink before, during and after exercise, plus sodium targets.