Happy vs. sad faces Plenty of research backs the rationales for both approaches. She’s happy. Jerald Jackson/Flickr Seeing a smile can make people feel happy.

What becomes a nemesis most?In Green Bay, the news of Packers quarterback Brett Favre's surprise decision to retire after 17 NFL seasons did more than spark a Wisconsin-wide day of mourning.

How did the researchers who manipulatedFacebook's news feed to show users more happy or sad content decide which posts to display? They used a common text-analysis software program called ...

MIT researchers have developed a system that can detect whether the tone of a conversation is happy, sad or neutral. For those with conditions that make it difficult to understand regular social ...

Medicare Pay Cuts Averted, Cobra Extended -- Why All the Sad Faces? By James A. White April 16, 2010 11:00 am ET Resize ...

Happy vs. sad faces Plenty of research backs the rationales for both approaches. She’s happy. Flickr/Jerald Jackson, CC BY-SA Seeing a smile can make people feel happy.