Please choose the correct ending to complete the given sentence: Youth: [header] How to not get stressed by school [title] Know when your stress has become unhealthy. [step] Some stress can be a good thing; it encourages us to work harder and perform under high pressure situations. But too much stress can begin to hurt our health and make it harder for us to perform.

Ending1: Recognizing how stressful it can be can also keep you from getting stressed out in the first place. It is especially important to know if it is stressing you out and why it is. Ending2: [substeps] A good sign that you have become overly stressed is that you can no longer bounce back. It makes sense to be stressed the night before a test. Ending3: In a matter of a week or 2, your stomach and your brain begin to feel overly stressed. The effects of stress can take months, months, even years to develop before they become a problem. Ending4: Less than 20% of americans experience stress from job challenges or failed projects. [title] Know your desire to do well in the classroom.

Answer format: ending1/ending2/ending3/ending4