Yes, after general exercise, there will be a drop in energy, and some will have hypoglycemia. You can eat red dates after exercise, which is helpful for fitness. Jujube strengthens the spleen and nourishes the stomach, which is beneficial to the digestion and absorption of nutrition and energy. Lycium barbarum nourishes yin and kidney, and kidney stores essence. "Essence" mainly refers to energy and vitality, full of kidney qi, and it is not easy to get tired in fitness. In the process of fitness exercise, you should also eat high-protein food, and muscle growth needs a lot of protein.