WIRED: Here’s the Real Reason Thanksgiving Makes You Sleepy

EVERY YEAR, MANY of us gather around a Thanksgiving table and stuff our faces with food before ducking out of awkward conversations with distant relatives by blaming our post-feast food coma on “too much turkey.” It’s true that there is no slumber quite like that of a Thanksgiving nap, but it’s time we faced what’s really turning us into drooling zombies who overstay our welcome on some second cousin’s couch. And guess what? It’s not the turkey....
https://www.wired.com/2016/11/heres-real-reason-thanksgiving-makes-sleepy/