Facial expression control starts in a very old part of the nervous system. In the brain stem sits the facial nucleus, which ...

Every time we smile, grimace, or flash a quick look of surprise, it feels effortless, but the brain is quietly coordinating ...

When a baby smiles at you, it's almost impossible not to smile back. This spontaneous reaction to a facial expression is part ...

Photo-Illustration by Chloe Dowling for TIME (Source Images: Klaus Vedfelt—Getty Images, Tim Robberts—Getty Images, Kelvin Murray—Getty Images, Robert Recker—Getty Images, Howard Kingsnorth—Getty ...

[Note: This practice involves our visual system, which for many people is impaired. If this is the case for you, you could adapt my suggestions to focus on the voices of others.] As our ancestors ...

A new study suggests that primate facial expressions may not just be reflex ...