This wonderful tool allows us to estimate the number of cups of coffee, cans of Coke, etc. that it will take to kill us. Just enter your weight and pick a caffeinated drink, and: voila!

At the start of this semester I found myself drinking much too much caffeine. I felt kind of jittery and tired all the time, and I didn't like it. So I quit drinking Coke (mostly), and only drink coffee in the morning. I feel much better now. It's only hard for the first few weeks. You can do it!

(via Boing Boing)