Researchers at the London School of Hygiene and Tropical Medicine found that that caffeine helped improve workers' memory and concentration as well as reducing the number of mistakes they made.

How does Caffeine work? Caffeine is known medically as trimethylxanthine; its chemical formula is C8H10N4O2. When isolated in pure form, caffeine is a white crystalline powder that tastes very bitter. Caffeine blocks adenosine reception so you feel alert. It injects adrenaline into the system to give you a boost. And it manipulates dopamine production to make you feel good.

I love coffee. I love the smell of it, the way it's aroma fills your home each morning. I love the taste of it (good coffee that is). And I love how once it gets into your body and does it's "thing" the fog lifts and you become a person again. Your consciousness improves and you see the world differently with each glorious sip. Ahh! I don't have a problem with caffeine. I have a problem without caffeine!