I suggest you combine work and rest. I feel the same way as you sometimes. It's best to get busy, and when you get busy, you forget everything. How can I not make myself sleepy? In fact, this is a very easy thing and does not require any medical treatment. Do more exercise at ordinary times and don't eat too much food containing acidic substances, such as meat. Coffee and tea will only excite the nerves, but will not achieve long-term effects. If you are really sleepy, stop working immediately, stand up, exercise and relax your nerves. Good work and rest habits are the best way to solve the problem of sleepiness. When you are particularly sleepy, such as drinking coffee or tea, the effect is not very good. Standing up and exercising will only have a short-term effect. But my mind is already in a daze, and I can't concentrate on my work at all. I am very upset ... the method I take is to find something to do for myself, so that as long as I have something to do, I won't feel sleepy and mentally. In fact, if you are always worried about being sleepy, you will really be sleepy again and again. We must adjust our mentality. According to past experience, don't eat too much for lunch, and then sleep for about 15 minutes. Be sure to wash your face and prepare some chewing gum after waking up. This is the best way to treat drowsiness. Cultivate a good character, think more about the interests of others, make more enterprising friends, weave contacts and make life full of fun. Keep a positive attitude and smile on your lips. Achieve short-,medium-and long-term goals in a planned, focused, orderly and effective manner. Let life be under your own control and develop the habit of lifelong learning. Will benefit a lot. You can also take a bath, which is very refreshing. There are also some tips. If you are an adult, I suggest you drink red bull, but red bull seems to mean that teenagers can't drink it. It may be harmful to your health. Anyway, I drank it and it worked! Or buy a box of cool oil and apply it to your temples when you are sleepy. This method will never hurt your health. You might as well try!