Many of us put emphasis on physical fitness, but what about our emotional strength?

That's where meditation comes in. The activity is essentially a "bicep curl for your brain," according to ABC News anchor and 10 Percent Happier author Dan Harris. And just as in weightlifting, it doesn't matter if you're a novice or an expert. Improvement comes with practice.

Indulging in a few moments of meditation can result in increased happiness, reduced stress and a host of other brain-boosting benefits. Not bad for an exercise that takes only a few minutes.