I feel very sleepy recently, I have no energy at work and don't like to talk. What happened? Is it because of the hot weather?

The hot weather may be just one aspect, and it may be a lack of exercise. People are unwilling to move in hot weather, which will make the whole person have no spirit. It is suggested to exercise properly in the morning or at night when the weather is cool, or they may not be interested in their work. No matter what work is simple or complicated, you should love it first. There is no best, only better. We should use our brains to improve our working ability and enrich ourselves every day. Or give yourself a holiday, or take advantage of the holiday to relax and nourish yourself, so that you feel that time passes quickly every day and there is no time to feel sleepy. By the way, don't stay up too late at night, get up too late in the morning, and take a nap for half an hour. Don't oversleep.