Louis Armstrong (and dozens since) sang

Latest Posts in Louis Armstrong (and dozens since) sang

Smile: it makes people wonder what you’re up to

 

“When you’re smiling,” Louis Armstrong (and dozens since) sang, “when you’re smiling, the whole world smiles with you.” More than 80 years later, scientists are getting around to proving that Larry Shay, Mark Fisher, and Joe Goodwin’s lyrics were more than just a pleasant homily. All thanks to an ancient evolutionary development called “mirror neurons.”

Italian researchers in the 1990s first found...