Everyone has stress. It is the worry or strain caused by new or difficult situations.
Most crises cause stress, so do life's normal ups and downs.
It is impossible to live a stress-free life. And you wouldn't want to, because stress is what prepares you to handle things that are unfamiliar, or that appear threatening. A little stress keeps you alert and on your toes. If you miss a class assignment, you risk getting a low grade. If you don't show up for work, you may be fired.