Cynthia Breazeal wonders: Why can we use robots on Mars, but not in our living rooms? The key, she says, is in training robots to interact with people. Now she dreams up and builds robots that teach, learn -- and play. Watch for amazing...

Professionally diagnosing narcissistic personality disorder is difficult for psychologists, partially because anyone who might have it just thinks they’re great!

There's another theory about the Covid-19 pandemic going around, and while it is pretty cool, it's not exactly the solution some are suggesting it might be.

Many animals need sleep. But all of the threats and demands animals face don't just go away when it's time to doze. That's why a range of birds, mammals, and even humans experience some degree of asymmetrical sleep, where parts of the...

If you've ever seen a group of starlings in flight, you've appreciated one of nature's most hypnotic sights -- the lava-lamp-like flow of a murmuration. SciShow explains the biology and mathematics behind this beautiful phenomenon.

We here at SciShow know of two things that can help you get through this flu season: a flu shot, and watching this video. Make sure you do both!

We tend to think of physical blindness like a blindfold, but it’s much more complicated than that, and in some instances, people who have lost their vision can still "see" subconsciously.

If you are a living, breathing human being, chances are you have felt sad at least a few times in your life. But what exactly is melancholy, and what (if anything) should we do about it? Courtney Stephens details our still-evolving...

Ever go to pour ketchup on your fries-and nothing comes out? Or the opposite happens, and your plate is suddenly swimming in a sea of red? George Zaidan describes the physics behind this frustrating phenomenon, explaining how ketchup and...

Driving can be dangerous, especially if you’re trying to juggle a variety of distractions while barreling down a busy highway. So scientists are looking into ways to keep us focused on the task at hand, even if you’re traveling in an...

Astronauts Scott Kelly and Mikhail Kornienko will soon undertake a historic, record-breaking mission: to live in space for an entire year. And scientists will have some extra help studying the effects of this extended stay on the...

*Yaaawwwwwn* Did just reading the word make you feel like yawning yourself? Known as contagious yawning, the reasons behind this phenomenon have been attributed to both the physiological and psychological. It's been observed in children...

Be it Elliott Smith or Queen, classical or dub step, there's usually a clear understanding that some songs are sad, and some songs are happy. But what is it about the music that makes us feel these feelings we're feeling?

Hank explains the scientific reasons behind why we humans generally prefer to eat donut hamburgers to carrots.

Catnip! Cats roll in it, rub their cheeks on it and paw at it... but what is it about this stuff that gets our feline friends caught up in such a frenzy?

Artist Safwat Saleem grew up with a stutter -- but as an independent animator, he decided to do his own voiceovers to give life to his characters. When YouTube commenters started mocking his Pakistani accent, it crushed him, and his...

Dealing with depression is not easy, and the most common treatments don’t work for everyone. Could biomarkers be the key to finding more treatment options?

The answer to why wasabi is such a nose burner has to do with a compound that researchers are trying to use in a creative way!

What if we could diagnose some of the world's deadliest diseases by the smells our bodies give off? In a fascinating talk and live demo, biologist James Logan introduces Freya, a malaria-sniffing dog, to show how we can harness the...

If you’re a person with sight, your two eyes are your only window into the visual world. But slugs see not only with their eyes, but with their brains as well!

In March 2020, the COVID-19 pandemic rocked economies worldwide. Millions of people lost their jobs, and many businesses struggled to survive or shut down. Governments responded with some of the largest economic relief packages in...

Two teams of scientists in two different parts of the world discovered a previously unknown neuron, which might have a lot to do with what makes humans, human.

What happens when technology knows more about us than we do? Poppy Crum studies how we express emotions -- and she suggests the end of the poker face is near, as new tech makes it easy to see the signals that give away how we're feeling....

In 1982, a young nurse was suffering from severe, unrelenting depression. She couldn’t work, socialize or concentrate. One controversial treatment changed everything: after two courses of electroconvulsive therapy (ECT) her symptoms...