Constantly tired after eating? Can't think clearly in the afternoon? Crave sugar the moment stress hits? TCM has a name for that. And it's more common than you'd think. In TCM, the spleen doesn't just filter blood — it's the engine of your entire digestive and energy system. It transforms the food you eat into qi and blood. When it's functioning well, you have steady energy, clear thinking, and easy digestion. When spleen qi is low, everything slows down. Signs to look for: →