Happy employees are productive employees. That's not just happy talk either. Research has shown that happier employees perform better, increase sales, and are more creative. There's science behind this. Stress and anxiety each spike activity in the part of the brain that processes threats. So your amygdala bogarts resources from your prefrontal cortex, the part of your brain that solves problems. That's hard for many of us hard-nosed sales people to swallow. Stress and deadlines are huge drivers of productivity, we think. That's how we meet our quota at the end of the quarter. Now, I'm not moving away from deadlines and quotas – and neither should you – but maybe being stressed isn't the positive driver of success many of us think.