question: My 30 year old son had a physical yesterday and was diagnosed with an irregular heart beat. He had been on a business trip all week and was exhausted from jet lag. He did say he had a Redbull just before the visit. He does have an appt tomorrow morning with a cardiologist. He is in excellent health - and is pretty much a health food junkie and works outs regularly Could it be fom the Redbul?