Depending on the circumstances, a smile can make or break our impression of a person. As an expression of joy, it can completely transform people’s faces, making them much more alluring. But how can we quantify that expression and use that knowledge to improve people’s opinions of ourselves? Let’s see if science can tell us […] Source: https://hugecount.com/health/how-to-have-a-perfect-smile-practical-tips-dental-advice/