Facial expressions arise from brain networks that encode slow, context-rich meaning and fast muscle control on different time scales, keeping smiles and threats socially precise.

Add Yahoo as a preferred source to see more of our stories on Google. You prepared thoroughly for a presentation at work, and now you’re dropping wisdom to a packed room. Much as you expected, your ...

Facial expressions offer potent displays of emotions and to a large extent are universally understood. Yet the social context or framing around an expression is important and can color how we ...

Credit - 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 ...