Turkey makes us sleepy, but it's the only one to blame

So you've eaten all the turkey and stuffing you can hold and now you’re getting sleepy.

By: Rachel Gallaher | WNCT
Published: November 28, 2008

So you've eaten all the turkey and stuffing you can hold and now you’re getting sleepy.

Judy Fortin explains it's not the strenuous eating that's making you drowsy.

Ever feel exhausted after eating a Thanksgiving meal?

Scientists say you're not alone. It seems that what we eat, how much we eat, and how much we drink during the holidays can cause us to become sleepy before the end of the football game.

Although turkey has been blamed for after-dinner naps, it's not the only reason.

Turkey contains l-tryroptohan (elle-trip-toe-fan), an amino acid that can induce sleep but other foods we eat at thanksgiving also contain tryoptohan, like pork, chicken and cheese.

Fats can also slow down the digestive system, causing more blood to flow to your tummy instead of your brain. When you over-eat, it takes lots of energy to digest a big meal.

When your stomach is full, blood is directed away from other organ systems, including your nervous system which could cause you the need to take a snooze.

Watch the alcohol.

Alcohol is a depressant and can cause anyone to feel sleepy if they drink too much.

And even if Aunt Mabel is stressing you out, most people relax when they sit down to the table.

The dinner provides you the chance to just chill out and relax. Doctors say that's a feeling that can take over, even after you've finished your pumpkin pie.