What makes a smile feel sincere or fake is due to a surprising blend of facial anatomy, neurology and emotional authenticity ...

It turned out that the activity of zygomaticus major (the ‘smiling muscle’), heart rate variability and EEG indicators can tell us most about the viewer’s impression of the movie.

Whether you're just starting your skin-care journey or are a seasoned enthusiast, these are the best facial toning tools, ...

He has a broad, genuine smile — a true Duchenne smile, which involves the zygomaticus major muscle pulling toward the orbicularis oculi. That smile is perceived as more genuine, authentic and ...

The first group is associated with the corners of the mouth – where, for example, the risorius (from the Latin to smile) draws the corners outward and the zygomaticus major muscle lifts them.

In the study published in The BMJ, scientists proposed that laughter exercises could be a promising home-based solution for those suffering from symptomatic dry eye disease.