It does take effort to smile, to be engaged in your world, in your surroundings, but once you smile, the rewards are endless. Consider the first smile of your day your first and most important workout. Your heart and your mind will be the better for it.

What if we were joyful simply just because? We all know the feeling of our hearts spilling over with joy. Can you imagine feeling this way all the time, or at least believing you could feel this way at any given time?

Have you noticed that when you smile at someone, especially if you catch them off-guard, that they smile back? OK, not everyone smiles back! Or do they?

As we search for happiness, reach for serenity, and follow our bliss, perhaps we should be focused on what makes us smile. Discover that organic something that brings out our childlike joy and hold on to it, while it leads us with rhythm, in harmony.

The power of a smile has nothing to do with your mood. If you put a smile on your face right now, chances are it will shift whatever mood you are in, and even your energy level, in a positive way.

Guys, want to look sexy and get the girl? Don't smile too much. Look brooding or show a bit of shame instead. Women, ignore that advice. Women find...

Smiling is a key strategy for getting free of a particularly heavy frame of mind and emotions. It amazes me how something so simple and doable could make such a profound difference in my ability to function effectively again.

Facial expressions don't merely reflect emotions; they also influence emotions. In facial feedback, studies show, the mere act of smiling makes people happier -- even when they smile mechanically.

Who needs a vacation to feel happier? Simple things (like hugging your pup) can brighten your day. Here's our list of things to do to boost your mood ...

Instead of psychologists spending all their time focusing on anger, depression and fear, they've decided to research the other end of the emotional spectrum, via Positive Psychology.