Summer heat demands vigilant hydration—a must year-round, but essential during intense heat waves. We often crave ice-cold drinks for instant relief, yet experts warn this can backfire.
Ice-cold beverages feel quenching at first, numbing thirst-sensing cells in your mouth and throat. These cells normally alert the hypothalamus to dehydration, triggering thirst. As dietician Paule Neyrat explains, the cold disrupts this signal, creating a false sense of hydration. You stop drinking too soon, unknowingly promoting dehydration.
Choose cool—not icy—drinks instead. Skip coffee, tea, and alcohol during heat waves, as they accelerate fluid loss.
