A couple of different family gatherings are being planned for the Thanksgiving holiday and by the time Saturday rolls around I probably will have had more than my annual allotment of tryptophan. Which means I could be settling in for a nap. Actually, I think they busted that holiday myth that it’s the turkey that makes you sleepy and while it does contain tryptophan, an amino acid that helps the brain produce serotonin, which does help you sleep … they say it’s not really the turkey’s fault.