Comment Re:Ken Murray's blog (Score 1) 646
My boss also experienced awful headaches when he tried to quit drinking coffee. The headaches lasted for days until he finally gave in and started drinking coffee again. It's a very common withdraw symptom.
The problem with coffee is that not only do you build a tolerance for it, but the withdraw symptoms match the symptoms you were originally trying to treat, namely alertness. See this (for example, I've seen other studies that come to the same conclusion): http://www.sciencedaily.com/releases/2010/06/100602211940.htm
If you consume caffeine regularly, you won't receive any net benefit at all. With gum, at least you're getting fresh breath for a while.