Happiness is hot. We want to read about it, analyze it and, most of all, find it.
Yet despite hundreds of books published on the topic, people are not getting any happier, said Neil Pasricha, author of "The Happiness Equation" and director of The Institute for Global Happiness.
"We're desperately searching for it," Pasricha told TODAY. "We want it more than anything else, and we are not moving the needle as a society."
Genes determine 50 percent of your happiness; circumstances account for 10 percent. That leaves 40 percent up to you, studies have shown.