Other people can influence how we feel, but new research suggests we have more control than previously thought.

Endless choices may seem appealing, but introduces a paradox. "You want to make a good choice, but feel like you can't."

The classic economic model predicts that people will keep lost wallets. New research in 40 countries finds that it depends on what's inside.

"Empathy is something like a muscle: left unused, it atrophies; put to work, it grows."

Facebook isn't always the go-to coping strategy of lonely teens, research in France shows.

"Our results offer the first neural explanation for deficits in emotion regulation in teenage girls."

Manipulating the brain to take the emotional heft from haunting memories might pave the way for treatments for PTSD and depression, a study with mice shows.

Marijuana can bring certain couples closer together, researchers say.

Do you trust the government? New research digs deeper than previous gauges to understand what people really think.

"Doing this study helped me look at my life, not as a big neon sign that says, 'DEMENTIA' in front of me…"