Hydration isn’t just about drinking more water. Many people are doing everything they’ve been told to do for hydration, carrying a giant stainless steel water bottle, sipping all day, and aiming for 2–3 litres, yet still don’t feel quite right.

Migraines can be life-disrupting—and frustratingly hard to predict. You might be avoiding all the usual suspects like caffeine, stress, and poor sleep. But there’s another powerful trigger that often goes unnoticed: histamine.