How to stay calm on a hectic day

You are bound to have one of those crazy days (or weeks or months) where your calendar is jammed with meetings, there are looming deadlines, and an emergency has cropped up that absolutely needs to be dealt with right away. Having a few things that hit at the same time can actually be good for you, but eventually, it is going to cause you problems. In particular, the researchers Yerkes and Dodson published a paper in 1908 (you read that right—over 110 years ago) talking about the optimal leve...