Change Your Brain with Breath
Humans are unique in our ability to alter our emotions and thoughts intentionally, rather than just reacting to stimuli. Another special gift we have as a species is the ability to intentionally control our breath.
Turns out that last ability is just as important as the first two when it comes to creating lives that are more happy, productive and satisfying.
You can read more of the research here, but bottom line, learning breathing exercises isn't just kidding yourself. It can actually change your brain.