A day in the life of a leading expert: "You can change your happiness if you're willing to do the work"

Story by Renee Onque writing for CNBC

As a social scientist who studies and teaches courses about happiness, Arthur C. Brooks must be a happy person himself, right? Well, it's not so clear cut.

Despite the extensive research he does, Brooks admits that he has to work harder at happiness than some people because he's predisposed to experiencing very high highs and very low lows emotionally, based on a PANAS test, which was developed by psychologists to measure mood scales.

To read more, click here.