It's very hot in summer. Is there any effective way not to doze off in class?

1. You can tie a hairband or a rubber band around your wrist. Then when you are sleepy, you can pull the rubber band and jump by yourself.

2. drink water. When I feel sleepy, I drink water, which not only relieves the problem of dozing off, but also maintains my skin ~!

3. Hold your breath until you feel uncomfortable, so it has certain effect. Do it a few times more.

4. You can also ask your deskmate to hit you hard ~ ~ ~

Take notes frequently in class, don't just listen, it's easy to get sleepy, do it, and keep up with the teacher's rhythm.

6. Even if you don't understand the teacher's lecture.

elegant

correct

, very effective.

7. Sit up straight with your legs and lift them forward at 90 degrees to make you awake and skinny.