1. Turn off the lights and go to bed at 2 1-23:00 in the evening. There are five sleep peaks a day. 1 The peak is at 23 o'clock in the evening. After missing it, I can only fall asleep at 2 am on the second peak. More importantly, when the sleep peak comes, the immune system has the strongest self-repair ability. If you can't fall asleep before 23: 00, it will easily lead to decreased immunity and induce diseases.

2. Walk barefoot on the grass or yellow soil in the morning 15 to 30 minutes. Because people are exposed to a large number of electrical appliances, they consume electromagnetic waves in their bodies every day. Walking barefoot or wearing sandals, electromagnetic waves can be conducted to the outside through people's feet.

Third, rub your thymus 200 times a day. The thymus is about four fingers wide below the subclavian depression. Holding a hollow fist and rubbing your body back and forth on both sides of your thymus can enhance your immunity.

Fourth, eat three meals a day, and don't eat meat, eggs or milk containing genetically modified or catalytic ingredients. Recipes should include fruits, vegetables and whole grains, among which sweet potato is the best food.