To have sound levels of self-esteem is one of the gateways to happiness. But achieving this has very little to do with the progress of our careers.

The dark truth is that it’s become very hard to find anyone (and certainly anything) more interesting than one’s smartphone. This perplexing and troubling realisation has for most of us had huge consequences for our love stories, family lives, work, leisure time and health.

The human brain is visibly split into a left and right side. This structure has inspired one of the most pervasive ideas about the brain: that the left side controls logic and the right side controls creativity. And yet, this is a myth, unsupported by scientific evidence. So how did this idea come about, and what does it get wrong?

Mastering any physical skill takes practice. Practice is the repetition of an action with the goal of improvement, and it helps us perform with more ease, speed, and confidence. But what does practice actually do to make us better at things? Annie Bosler and Don Greene explain how practice affects the inner workings of our brains.

How good are you with money? What about reading people’s emotions? How healthy are you, compared to other people you know? Knowing how our skills stack up against others is useful in many ways. But psychological research suggests that we’re not very good at evaluating ourselves accurately. In fact, we frequently overestimate our own abilities. David Dunning describes the Dunning-Kruger effect.

When they’re used well, graphs can help us intuitively grasp complex data. But as visual software has enabled more usage of graphs throughout all media, it has also made them easier to use in a careless or dishonest way – and as it turns out, there are plenty of ways graphs can mislead and outright manipulate. Lea Gaslowitz shares some things to look out for.

Are you afraid of black cats? Would you open an umbrella indoors? How do you feel about the number 13? Whether or not you believe in them, you’re probably familiar with a few of these superstitions. But where did they come from? Stuart Vyse shares the weird and specific origins of some of our favorite superstitions.

If you lined up all the blood vessels in your body, they’d be 60 thousand miles long. And every day, they carry the equivalent of over two thousand gallons of blood to the body’s tissues.

Why do people succeed? Is it because they’re smart? Or are they just lucky? Neither. Analyst Richard St. John condenses years of interviews into an unmissable 3-minute slideshow on the real secrets of success.