Can dehydration cause migraines?
Yes. Dehydration can shrink brain tissue, trigger pain pathways, and lower your pain threshold, making migraines more likely and more severe. Staying hydrated—about 2 liters of water daily—may help prevent attacks and reduce their intensity.
If you live in Houston, you know our heat and humidity can make it easy to break a sweat—and just as easy to get dehydrated. But for people living with migraines, dehydration isn’t just uncomfortable—it can be a major...