Hot summer can lead to loss of appetite, so you can eat some light meals for dinner to avoid affecting sleep. You can drink mung bean porridge, bitter melon porridge, millet porridge, rice porridge and corn porridge. You can also eat some rotten noodles and eat more fresh and cooked vegetables. Don't eat too much for dinner. You can eat some fruits one hour after dinner, such as watermelon, grapes, pears, apples and peaches. Exercise properly after meals to enhance the body's resistance.