If you go to the gym often enough, you might be familiar with protein powders and shakes, but one study thinks that the secret to big gains might actually be your gut bacteria.

Our mood is influenced in many ways by our environment, and researchers have discovered a possible connection between the pollen in our air and a rise in suicide.

Problem 2 from the 2011 IMO

If you could travel back in time, and you killed your grandfather, would you be killing your future self? What do physics, complexity theory, and computer science have to say about this famous murderous time-travel paradox?

Did you know that Schizophrenia and Multiple Personality Disorder aren't the same thing? Did you know that we don't call it Multiple Personality Disorder anymore? In this episode of Crash Course Psychology, Hank takes us down the...

The global pandemic led to a drop in outdoor air pollution, but it also led to an increase in indoor air pollution - and our exposure to it.

The clash of ideas is fundamental to creativity and progress, but it can also be deeply destructive and create divisions within companies, communities and families. How do you foster productive debate while protecting against harmful...

People ask Google everything under the sun. One of the most commonly searched questions in the world is “How do I grow a beard?”? Let SciShow explain.

Problem 2 from the 2011 IMO

Prevailing for around 270 million years and encompassing more than 20,000 distinct species, trilobites are some of the most successful lifeforms in Earth's history. When they sprung into existence, they were among the most diverse and...

Even if you're Mel Gibson or Kanye, it's probably best to not wear all of your emotions on your sleeve. In this episode of Crash Course Psychology, Hank talks about these things called "Emotions". What are they? And why do we...

Towering 85 meters above the Norwegian countryside, Mjøstårnet is the world's tallest wooden building, made almost entirely from the trees of neighboring forests. But as recently as the end of the 20th century, engineers thought it was...

Scientists say that we might be looking at the first extinction caused by whaling, and on an entirely different note, a discovery involving bed bugs and STIs.

Scientists have been staking out a forest in Montana for an animal that's notoriously tricky to find. Camera traps haven't offered definitive evidence, and experts can't identify its tracks with certainty. But within the past decades,...

For millions of people with Parkinson’s disease, movement becomes much harder. But researchers have found that dance therapy may help them both physically and mentally.

SciShow debunks the myth that you only use 10 percent of your brain. So, how much do you really use? And how do we know?

There are estimated to be over 18,000 different bird species with a wide variety of nest shapes and sizes. From teeny, adorable cups to massive compost mounds, the diversity of birds’ nests is definitely impressive. Chapters 1 BALD...

Why Aren't Mammals More Colorful

Throughout history, scientists have proposed conflicting ideas on how the brain carries out functions like perception, memory, and movement. Is each of these tasks carried out by a specific area of the brain? Or do multiple areas work...

When you think about Einstein and physics, E=mc^2 is probably the first thing that comes to mind. But one of his greatest contributions to the field actually came in the form of an odd philosophical footnote in a 1935 paper he co-wrote...

What would it take to reimagine the limits of architecture? Débora Mesa Molina offers some answers in this breathtaking, visual tour of her work, showing how structures can be made with overlooked materials and unconventional methods --...

It's been conjectured that the center of the Milky Way is swarming with tens of thousands of black holes. And now we've actually seen them.

Whales have a surprising and important job, says marine biologist Asha de Vos: these massive creatures are ecosystem engineers, keeping the oceans healthy and stable by ... well, by pooping, for a start. Learn from de Vos, a TED Fellow,...

Hank shares the latest exciting findings from the Mars Science Laboratory, known to its friends as Curiosity. Learn what Curiosity has discovered about the giant Gale Crater, and what those developments mean for the prospects of ancient...