Judy O. answered 05/29/19
EMT, Paramedic, NREMT - Basic EMT, Paramedic and FF exam expert.
Hello! In short, when you add food to your stomach, your body shunts blood to your core to process it. Usually the more you consume, the more sleepy you feel because your body has made digestion a priority, and not other parts of your body, i.e. brain, etc.