Ever hugged your toaster? You might be about to start if student Ted Wiles has his way. He's designed a range of products with the sole purpose of increasing happiness – from an alarm clock that can only be stopped with a victory pose to a phone that puts the user on hold until they smile.

One in ten Americans are clinically depressed. As busyness becomes a status symbol for Millennials, the stress is mounting. 'Text therapy' platform Talkspace appeals to a generation accustomed to immediate answers with a tap of a smartphone – but is it effective?

You can’t move for being told how to be happy. It’s a choice, claims Coca-Cola in its Choose Happiness campaign. It’s the truth, croons Pharrell in Happy. We can redesign our lives to achieve it, says Paul Dolan in Happiness by Design. But what does ‘being happy’ mean, and how do we achieve it?

If you’re in a bad mood at work, it can be hard to get the job done. Your attention and creativity suffer no matter how persistent you are. But since it's proven that happy workers are the most productive, how can employers get in sync with those potentially costly mood swings?