Why That Big Lunch Is Making You Want to Crawl Into Bed
Your Body's Natural Response To Large Meals: After eating a heavy meal, feeling drowsy and sluggish is completely normal. This tired feeling, sometimes called "food coma" or postprandial somnolence, happens because your body redirects energy to digest all that food. When you consume a large amount of food, your digestive system kicks into high gear, requiring more blood flow and energy to break down proteins, fats, and carbohydrates.