Effect of stress on a student

There are many effects of stress on a student. One effect is that, It’s make a student feel more nervous, so he will not feels fun and happy when he studies anymore. In addition, when he becoming nervous, so he may be feel headache, also. Finally, I think, the teacher on their parents should not stress on a student too much, but just tell them which one is good or bad and let’s he chooses by himself.