Sometimes, your stomach is just a tiny rebel. If you drink water too fast, especially when you’re dehydrated, your stomach stretches like a balloon. That sudden stretch can trigger your gag reflex—yes, it’s a thing—and boom, you’re vomiting. (Thanks, evolution, for that survival trick we don’t really need for water.)
Another sneaky culprit? Temperature. Ice-cold water on a sensitive stomach can cause spasms. Try room-temperature water next time—your tummy might appreciate a little less drama.