Exercise, hot peppers, sex: All of these things are said to give you an endorphin rush. What's the science behind this chemical high -- and how do you keep it going?
So you've been passed over again at work for that promotion you wanted. You're so angry that you can't get any more work done today, so you've come to HowStuffWorks to spend the rest of the day doing quizzes. Maybe understanding anger might help you to relax!