If you want happiness for a day ... The venerable aphorism is drummed into our heads from our first slice of a shared birthday cake. But is there a deeper truth behind the truism?

even your neighbors—all influence how happy you are. Or can be. So do individual ways of thinking and expressing feelings. Research shows that much of happiness is under personal control.

“Over time, when you are in that mode ... “By engaging in meaningful activities, without constantly monitoring our happiness levels, we're more likely to experience genuine contentment ...

In today's modern world, our thumbs get more of a workout than any other body part. So much so that it's possible to spend an entire day sitting, tapping on one device to the next. But did you ...