After a big thanksgiving meal, where does everyone go? Usually, they head straight for the closest couch or chair to take a nap. What makes us so tired? It was previously assumed that the guest of honor, turkey, was the culprit of this overwhelming feeling of drowsiness. Yes, turkey does contain the amino acid, tryptophan, which is a natural sedative, but we do not consume near enough turkey to induce the drowsiness we are all overcome by. It is believe that the real culprits of our need to take a nap would be, the consummation of alcohol, overeating carbohydrates, and increased blood flow in the gastrointestinal tract, which increases the metabolic rate. It is interesting to find out the real cause of our post-thanksgiving gorging drowsiness. Looking at the the facts scientifically, one usually can find an answer.