Smiling has many benefits such as making us more attractive, helping us stay positive, and relieving stress. It also boosts our immune system, lowers blood pressure, and releases endorphins. A smile is infectious and can be passed from person to person like a flu. Once someone smiles at you, you will likely start smiling too and pass your smile on to others. Keeping smiles genuine and with the eyes can travel around the world and start an epidemic of smiles that infects everyone.