Everytime you smile at someone, it is an action of love, a gift to that person,
a beautiful thing. ~Mother Teresa

Smiling and laughing can have a positive effect on your well-being, but as you make the transition from child to adult, you often tend to lose the habit of indulging in these behaviors. A good example of this is a children’s playground: You often see the kids running around, constantly laughing and smiling as they enjoy living in the moment, while the parents sit around the edge, full of the stresses that modern life can bring, with the occasional grin breaking their otherwise serious facial expressions. Adults can benefit from taking a lead from children and making more room in life for smiling and laughter. ~Brian Lee, lifehack