March 14, 2013 | Vol. 116 -- No. 47

Bees are buzzing on caffeine

By Dr. E. Kirsten Peters

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Contributor

A friend of mine recently returned to the U.S. from deployment with the National Guard in Afghanistan. One of the first things he did when he reached a military base in Texas was to buy a cup of espresso. He even took a picture of it and posted it on the Internet. Good coffee was a sure sign, he said, he’d returned to civilization.

The magic in coffee is caffeine, a stimulant that keeps us coffee-drinkers going back for more every day. Many of us know that a dose of caffeine makes us perk up and concentrate better. It makes reading and writing a bree...

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