I can, but I see that as 20 percent of the solution. The big part—the 80 percent of happiness—is nothing but a chemistry experiment. And it’s hugely helpful to think of it that way. You can’t always quickly fix whatever is wrong in your environment, and you can’t prevent negative thoughts from drifting into your head. But you can easily control your body chemistry through lifestyle, and that in turn will cause your thoughts to turn positive, while making the bumps in your path feel less important.
