Well, when answering a question which requires a short answer you want to keep it simple but have everything important to answer it altogether. Let's say this was to be a short answer 1-2 sentences should be enough as long as it contains everything needed, like it does.
A short answer of something.
Exercise. It's a cliché for a reason: exercise really does prompt your body to release feel-good hormones like endorphins, which can help you to feel less stressed. ...
Organise. ...
Breathe. ...
Take a time out. ...
Meditate.