Cardiologist warns of caffeine overuse dangers

SIOUX FALLS, S.D. (KELO) -- After the death of a teenage girl in Texas, one doctor is warning of the dangers of caffeine overuse. 17-year-old Larissa Rodriguez died of a cardiac event. Rodriguez was a regular drinker of Alani Nu energy drinks, which contain 200 mg of caffeine per can. The county medical examiner said [...]