In fact, this is mainly caused by psychological factors and physiological factors. We cannot change the weather, but we can change ourselves. First of all, the weather is cool in the morning, and we are clear-headed, so we can do important things at this time. It's sultry at noon, so you can take a nap and try to do less boring work. Second, it can keep the environment ventilated. Third, drink more tea and eat eight-treasure porridge.