Sarah Katz, 21, had a heart condition and was not aware of the drink’s caffeine content, which exceeded that of cans of Red Bull and Monster energy drinks combined, according to a legal filing
Sarah Katz, 21, had a heart condition and was not aware of the drink’s caffeine content, which exceeded that of cans of Red Bull and Monster energy drinks combined, according to a legal filing
I don't drink energy drinks anymore but to answer your question you build up tolerance.