Alec blogs about the girl who overdosed on seven double espressos, and writes, “Nowadays I have a hard stop, and move to decaf after a max of four singles.” Hmm. My normal breakfast begins with a quad espresso macchiato, which is just over 300 mg. caffeine. I frequently have another quad EM later in the day, and occasionally a caffeinated drink with lunch. ((However I’m surprised to see that one of my regular choices, WhoopAss, only has 50 mg. of caffeine, about the same as a cup of tea.)) And I’ve never knowingly OD’d on caffeine, though I have experienced caffeine withdrawal. Perhaps it’s a function of body weight…