If you can just drink a glass of water, why would anyone get an IV? It comes down to how your body absorbs things. Drinking water means waiting on digestion and losing some along the way. An IV skips all of that. Here's the science, and when it actually matters.

Dehydration is one of the most overlooked migraine triggers, and the cruel irony is that once a migraine hits, you often can't keep fluids down. Here's what a migraine drip actually does, the surprising magnesium connection, and an honest look at what it can and can't do.