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.
