Kevin Drum: “The Real Story Behind Black Friday.” The phrase originally was a snarky dig at customers by retailers, and so of course it started here in Philadelphia. “Thanksgiving: Busting the tryptophan myth wide open.” The American Chemical Society says we feel groggy from over-eating, but not from the tryptophan in turkey. I’m sure the over-eating has an effect, but I don’t find their attempt to exonerate the turkey wholly convincing. Via Sarah Kliff, here’s the “myth-busting” from Aaron Carroll:... Read more