Your smile, in particular, is a double-edged sword, conveying both underlying and surface-level emotions during social ...

This smile can also be used to uplift someone. These three smiles were then implemented in Martin’s research. Martin gave 90 male students a task to complete, incorporating the types of smiles. Stella ...

The three kinds of smiles. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any ...

Humans can produce thousands of distinct facial expressions – including 19 different types of smile, according to research by the American psychologist Paul Ekman. However, only one of these is ...