It's hard to find much wrong with a drug that can battle fatigue and improve creativity and could even help prevent Parkinson's disease and diabetes. It's also hard to find much right with a drug that elevates blood pressure, aggravates stress, causes insomnia and leads to addiction. When both drugs are the same thing, it's hard to know what to think.
That's the rap--and the rep--associated with caffeine, the recreational chemical of choice for nearly 60% of Americans. But what of the received wisdom is true? Is caffeine a scourge, a tonic, a little bit of both?
One thing's for certain:...
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