Is Caffeine Good or Bad
for Headaches? Caffeine has long been promoted as the go-to remedy for a headache. But does it actually work? According to science, maybe. It all depends on the source
of caffeine. Caffeine can help headaches caused by vasodilation, swollen blood vessels
in the brain. But it'll likely make a headache caused by dehydration
much worse. Caffeine from energy drinks can also worsen headaches. They may contain neurostimulants that are associated with dizziness, seizures
and strokes. So next time you have a headache, choose wisely.