The buzz from you get from coffee may not be caused by caffeine after all, meaning decaf may raise your blood pressure just as much as the regular brew. Also, coffee has been shown to help diabetes and little old ladies who drink lots of it stay mentally sharp.
Researchers gave triple espressos, in both regular and decaf versions, to six regular coffee drinkers and nine people who never drank caffeine. To their surprise, both drinks had the same effect on the non-coffee drinkers, raising their blood pressure. The results could be caused by the placebo effect, meaning they expected to get a buzz from the coffee?so they did. But Swiss scientist Roberto Corti thinks something other than the caffeine in coffee produces its stimulating effect.