On CBS morning news, Dr. Jennifer Ashton explains that the huge meal rather than the turkey itself is to blame for the Thanksgiving nap time most people feel the need for.

She also has some tips to help avoid the sleepiness.

The poor turkey always gets the blame for making everyone tired after the meal, but it’s the myth plus the bulk that is really the culprit.

Not surprising when the thing people look forward to the most on Thanksgiving is eating heaps of food.

So, before you go blaming tryptophan this year, why not try going out and being a bit active after your meal to see what happens.