Not a believer in the power of positive thinking? Skeptical of the school of “happy thoughts”? Consider all this internal optimism stuff a bunch of psycho-babble? Well, it might be time to turn that frown upside down because there’s new research that shows positive thoughts can boost your brain power, reduce your stress and increase your overall wellness. This translates in the work environment to your bottom line with a more productive, creative and healthy staff. Still not convinced? Read more about the science of a smiley face.