When you think about an eating disorder, you might imagine restricting or purging food. But the most common eating disorder has nothing to do with either of those, and chances are you’ve never heard of it.

The March on Washington of 1963 is an enduring and widely-known event of the Civil Rights movement. But the March has its roots in an earlier planned March on Washington that didn't happen. In 1941, labor leader A. Philip Randolph began...

A throbbing, pounding headache. Bright zigzagging lines across your field of vision. Sensitivity to light, lingering fatigue, disrupted sleep. While an incapacitating headache is one of the most common symptoms, a migraine can include...

Once it’s out of your body, your genetic information is valuable to a variety of people, but you can keep it safe(ish) with a few simple steps. ___________________________________________ To learn more, start your googling with these...

Sebastian Wernicke thinks every TED Talk can be summarized in six words. In this talk, he shows how to do just that -- and less.

In which John Green teaches you about nation building and nationalism in Latin America. Sometimes, the nations of Latin America get compared to the nations of Europe, and are found wanting. This is kind of a silly comparison. The rise of...

"For all that's ever been said about climate change, we haven't heard nearly enough about the psychological impacts of living in a warming world," says science writer Britt Wray. In this quick talk, she explores how climate change is...

Paul Andersen teams up with Keith Hughes to explain why teaching evolution is not optional for high school biology teachers.

We need to have a talk about your future. You're going to die. We all are. And it's probably going to be expensive. This week on CC Econ, Adriene is talking about the economics of death. Some of the expense is tied to the cost of...

A method for thinking about high-dimensional spheres, introduced in the context of a classic example involving a high-dimensional sphere inside a high-dimensional box.

The post-World War II decades in Europe are sometimes called the Thirty Glorious Years. As those years wore on, tensions between East and West grew, and economic growth slowed or was unevenly distributed across Europe, protests and...

Everyone knows, you need a bunch of rules to make good theater. That's what the French thought in the 17th century, anyway. The French Neoclassical revival had a BUNCH of French playwrights following a bunch of rules. Unsurprisingly,...

If we want to fix our politics, we have to do something about inequality, says social psychologist Keith Payne. Showing how economic inequality changes the way people see and behave towards one another, Payne helps explain the rise of...

Having a kid does some weird things to the brain, and that can lead to or aggravate all kinds of psychiatric conditions.

This week on Crash Course Mythology, we're getting urban. Mike Rugnetta is the man with the orange umbrella who's about to give you a free tour of mythical cities. We'll talk about a few cities that didn't exist, but we're going to focus...

Colleges and universities in the US make billions of dollars each year from sports, compromising the health and education of athletes -- who are disproportionately Black -- in the name of money, power and pride. Sports lawyer and...

Sex is complicated for different reasons in different cultures. But, it's the entire purpose of life, so there's no reason to blush. In this episode of Crash Course Psychology, Hank talks about Kinsey, Masters and Johnson, Sexuality,...

When you report an emergency in the US, police, firefighters or paramedics answer the call. What if mental health professionals responded, too? Colorado State Representative Leslie Herod shares a straightforward and research-backed...

Media and advertising companies still use the same old demographics to understand audiences, but they're becoming increasingly harder to track online, says media researcher Johanna Blakley. As social media outgrows traditional media, and...

The aftermath of the collapse of the Soviet Union and its Warsaw Pact had a huge impact on the countries of Eastern Europe. As the former satellite states turned away from communism and Soviet influence, some of them shifted toward...

Herman Rorschach (no, not the guy from Watchmen) came up with the eponymous tests, but what do they mean? Why are we so fascinated with them despite the division in the world of Psychology? Hank tackles these topics as we take a...

If you read "Bob, a DJ and a clown" on a guest list, are three people coming to the party, or only one? That depends on whether you're for or against the Oxford comma -- perhaps the most hotly contested punctuation mark of all time. When...

Mike Rugnetta is going to tell you stories of death, destruction, divine judgment, damnation, and the occasional happy ending. That's right, this week we're talking about the Apocalypse. Actually we're talking about a bunch of ways the...

For the next half of this series, we will be discussing Human Geography — so we’ll still be looking at the Earth, but specifically, how human activity affects and is influenced by the Earth. Naturally, we thought the best place to start...