Yam and corn porridge, sweet in taste and flat in nature, has the effects of strengthening kidney, nourishing lung, strengthening spleen and replenishing essence. And corn is also flat and sweet, which has the functions of diuresis and detumescence, calming the liver and gallbladder, strengthening the spleen and infiltrating dampness, regulating appetite, benefiting the lungs and calming the heart, and clearing away damp heat. Therefore, the combination of the two can not only promote the digestion of the stomach, but also greatly promote the absorption of nutrients. Sleeping before 10 at night and doing (growing and stretching) before going to bed are conducive to growing taller.