Do you ever have one of those really long belly laughs? The kind that leaves you nearly breathless, brings tears to your eyes, and makes your cheeks and abs sore? It’s the kind of laughter that can set the tone for an entire day, make your steps a little lighter, your smile a little quicker to appear, and a feeling, if only brief, that the world is going to be just fine. Those are great, aren’t they? Well, it turns out they’re actually pretty beneficial, too!