Happiness: The 40% Solution - Hardcoverby Ron Morris (Author) How much of our happiness do we have control over? It seems that external forces are responsible for how happy we are, or rather, how unhappy we are. From getting cut off in traffic to a shocking health diagnosis, everyone has experienced events that threaten to diminish their happiness. What if we could bring more happiness into our lives, at no financial cost? Discover how you can increase your happiness by up to 40 percent.