I think it's more about how you handle stress. Some people handle stress in positive ways - for example, I find I work much better under some degree of stress

I think it's more about how you handle stress. Some people handle stress in positive ways - for example, I find I work much better under some degree of stress (e.g. deadlines) - without stress, I would just procrastinate indefinitely. Under emotional stress, I typically go hard in the gym. Other people seem to breakdown under stress though, and I can't imagine that's healthy.