For far too many people in the world, the vicious cycle of financial deprivation also feeds into the vicious cycle of sleep deprivation. If you're working two or three jobs and struggling to make ends meet, "get more sleep" is probably not going to be near the top of your priorities list.

I usually start with a big question, such as whether people today are happier than in the past, or why men have dominated women in most human societies. And then I follow the question instead of trying to follow my own answer, even if it means I can't formulate any clear theory.

The most effective means for restoring the integrity of our electoral process, and repairing the public's tattered faith in its elected representatives, is through the full public financing of political campigns. It's the mother of all reforms: the one reform that makes all other reforms possible. After all, he who pays the piper calls the tune. If someone's going to own the politicians, it might as well be the American people.

Our relationship with sleep is currently in crisis, but we're also living in a golden age of sleep science - revealing all the ways in which sleep and dreams play a vital role in our decision-making, emotional intelligence, cognitive function, and creativity. Every week, new research reveals how vital sleep is to our health, happiness, job performance, and relationships.

I'm much more creative when I've actually taken care of myself.

Don’t just climb the ladder of success - a ladder that leads, after all, to higher and higher levels of stress and burnout - but chart a new path to success, remaking it in a way that includes not just the conventional metrics of money and power, but a third metric that includes well-being, wisdom, wonder and giving, so that the goal is not just to succeed but to thrive.

The middle class is teetering on the brink of collapse just as surely as AIG was in the fall of 2009 - only this time, it's not just one giant insurance company (and its banking counterparties) facing disaster, it's tens of millions of hardworking Americans who played by the rules.