many people find they feel tired and sluggish after eating. The food has not yet reached the small intestine — it is still in the preparatory stages of digestion. We no longer feel hungry because our stomach has been expanded by the food we’ve eaten. But we feel just as sluggish as we did before the meal, and now we have to come up with the extra energy for all that mixing and breaking down. To achieve this, a large amount of blood is delivered to our digestive organs, and many researchers believe that post-prandial tiredness may also be due to the resulting reduced blood supply to the brain.
