Did you know that one of the active ingredients in Excedrin is caffeine? Well it is, and it is there for a reason. One of the main causes of headaches is the swelling of blood vessels in the head. When caffeine is ingested, it constricts blood vessels. So it helps reduce swollen blood vessels back to their normal size. Allowing the pain to decrease or even stop. I am no medical doctor, but it makes sense to me. I’ll have to try drinking a caffeinated beverage next time I have a pesky headache that won’t go away. Obviously, this doesn’t give you license to drink excessive amounts of caffeine, “to prevent headaches”.

Popularity: 1% [?]