The best way to answer this question is to give an example of how you have handled stress in a previous job. That way, the interviewer can get a clear picture of how well you work in stressful situations. Avoid mentioning a time when you put yourself in a needlessly stressful situation. Rather, describe a time when you were given a difficult task or multiple assignments and rose to the occasion:

“I actually work better under pressure, and I’ve found that I enjoy working in a challenging environment. I thrive under quick deadlines and multiple projects. I find that when I’m under the pressure of a deadline, I can do some of my highest quality work. For example, I once had three large projects due in the same week, which was a lot of pressure. However, because I created a schedule that detailed how I would break down each project into small assignments, I completed all three projects ahead of time and avoided additional stress.”