How Caffeine

Caffeine seems to help prevent gallstones and inflammation, among other medical problems. Some studies show that regular caffeine might help keep away certain neurological diseases, like Parkinson's, Alzheimer's, Huntington's, multiple sclerosis, and epilepsy. More research is needed.

Though the reason isn't clear, caffeine can spike your blood pressure for a short while and sometimes over the long term as well. It could be that it blocks a hormone that keeps your arteries wide and pressure down. Or it might cause your body to release more adrenaline, a hormone that raises blood pressure. Talk to your doctor about how much caffeine you can have if you have high blood pressure or heart problems.