Had a family member die of a stroke last week. She was working alot trying to get her new boutique open in time. She was drinking Redbull to help her get through the fatigue. No other health problems, not overweight, not a smoker, and not on birth control (which has a risk of stroke in woman over 35). She was 39 years old and they feel like the drink may have contributed to the stroke. I can tell you that even the thought that it may have risk of causing ANY health problems makes me never want to open the first can. It's not worth the potential health effects...