Feeling stressed lately? Chances are you're not alone. We carry varying degrees of stress around with us all the time—sometimes more, sometimes less. Does that pressure make us more productive or less? As with so many aspects of human psychology, the answer is: It depends. But what it depends on is something called the Yerkes-Dodson curve, a theory that dates back to 1908. Here's how understanding it can help you channel the stress you may be feeling into energy to get things done.
The Yerkes-Dodson curve relates the amount of motivational energy, called "arousal," a person may possess to how well they'll perform at a given task. The basic idea is that at low levels of arousal, people don't perform particularly well. In this state, people aren't all that motivated to get much done. That helps explain why being totally stress-free can breed laziness or complacency, and also why some of your most productive days are those when the clock is ticking for you to wrap up a big projec
Via The Learning Factor