The Language of Smiles
In the early 19th century, a French scientist Guillaume Duchenne de Baulogne was a neurologist who undertook the first recorded scientific study of smiles by using electrodiagnostics and electrical stimulation to distinguish between a real smile and the variety of smiles. The study was conducted by analyzing the heads of people who were executed by a guillotine and the face muscles were observed. The scientist did this observation by pulling face muscles from many different angles to catalogue and record the smiles caused by the different muscles. According to him our smile is controlled by 2 sets of muscles: the zygomatic major muscles which run down the side of the face and connect with the corners of the mouth and the orbicularis oculi which run down the side of the face and connect with the corners of the mouth along with the orbicularis oculi which pull the eyes back. Zygomatic majors pull the mouth back and expose the teeth by enlarging the cheeks. The orbicularis oculi