Yes, but: Yes, but probably not the way you're imagining. They don't overload the heart - they can overstimulate it (due to caffeine od) which can lead to rhythm disturbances.
Answered 8/19/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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