what chemical in turkey makes you tired
One is that Uncle Lou will finally get the hint by Friday afternoon that he's overstayed his welcome and will leave without swiping most of the leftovers. The other is that there's a natural chemical in turkey called tryptophan that makes you sleepy after the Thanksgiving meal.While the first myth stems from wishful thinking, the sleepy-turkey myth lingers around each year because it sounds so logical. Alas, it is only marginally true.here is a sleep connection, though. The body uses tryptophan in a multi-step process to make serotonin, a neurotransmitter in the brain that helps regulate sleep. Turkey does have tryptophan.