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Show Sleepy After Meals? If you are very hungry and have a good meal, why should you feel sleepy, provided, of course, you have not yet done anything specially special-ly strenuous? Here's why: The activities of -the human body are energized by the blood. If you are hungry and have a good meal, the chief occupation of your physical phys-ical system is then devoted to digestion. di-gestion. Blood is drawn oS automatically auto-matically from everywhere else to carry out that process of digestion. Blood is drawn from your brain, and so your brain slows down and you feel sleepy. |