Interesting article. I don't doubt that stress can limit creativity, but from my own experience, some stress seems to make me more productive. At times, a little deadline pressure is a good motivating force, and I find it easier for me to get into and stay in "the zone" where I'm completely focused and able to work at a fast pace. Continual stress would likely make things worse, but a few weeks of deadline pressure can really make me work harder and better.<p>To be honest, I skimmed through parts of the article so I hope I'm not repeating or misrepresenting what the article says, but it seems like the best process for me is to have some stress free time at the beginning of a project to let things percolate, and then later on, have a looming deadline to help me focus and grind things out.