A majority of modern astronauts experience any one of a suite of symptoms scientists collectively call Space Motion Sickness, or SMS. But despite knowing about it for nearly as long as humans have gone into space, we still don't know...

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Tinnitus, or ringing in the ears, often...

On her way to winning the 2023 Nobel Prize for her pioneering work on mRNA vaccines, Katalin Karikó lived a life made for the big screen. <br/>

These relatives of ours lived in Eurasia for more than 300,000 years. They were expert toolmakers, using materials like stone, wood, and animal bone. They were also skilled hunters and foragers, and may even have created cave art. So...

You’re alive right now… at least I’m pretty sure you are. But you’re not TOTALLY alive. Bits of you are always breaking down, being thrown out, and being replaced. Even right now, parts of you are dying. Some of your cells even died...

You may not be an expert, but perhaps you feel pretty confident that you could ride a motorcycle, or give someone a decent haircut - if you absolutely had to - right? Not so much, according to the psychological phenomenon known as the...

I’m vaccinated. I’m boosted. And I still got infected with the omicron variant of COVID-19. Here’s what I learned, and what it means for the possible end of this pandemic.

Some swear they're cursed to be hunted by mosquitos while their close-by companions are regularly left unscathed. Are mosquitos really attracted to some people more than others? And if so, is there anything we can do about it? Maria...

Climate change doesn't care about ideological divides, says policy analyst and China expert Changhua Wu. Here's what she says the US can learn from the progress China has made on the clean energy revolution -- and why collaboration...

Teeth are so well preserved in the fossil record that they make the best, most informative fossils we can find, from phylogenetic studies to learning about the evolution of the human brain.

Chances are, the worst thing that's happened to you because of a sneeze is a snot rocket. But for these people, sneezing caused anything from damaged ears to a broken neck! But in one case, a sneezing fit saved one woman from needing...

A simple mis-folding in a certain brain protein causes a disease for which we have no cure.

We actually have no idea what a “disease” is.

This video written & produced in collaboration with Aatish Bhatia,
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This video is about how cheap, fast, and LESS sensitive rapid antigen tests might be...

A clip from America Ferrera's TED Talk "My identity is a superpower -- not an obstacle" from TED2019 Hollywood needs to stop resisting what the world actually looks like, says actor, director and activist America Ferrera. Tracing the...

Right now, experts say a vaccine for COVID-19 is a year or more away. But as far away as it sounds, it’s only within the realm of possibility because scientists are speeding up the vaccine development process in surprising ways.

You’re probably aware that your blood can be A, B, AB or O, but it turns out that blood types can get a lot more complicated than that! *We made a mistake in the credits of this video: The writer of this episode was Alane Lim.

Some online quizzes would have you believe the idea that certain people have a specific “personality type”. But is an “addictive personality” a real thing?

Hank discusses some new research that studied what makes us unhappy with ourselves and with other people, focusing on homophobia and consumerism.

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?

Scientists know that genetic factors can explain many of autism’s features - but have autism researchers been looking for those features in the wrong DNA? A new study uses A.I. to uncover changes linked to autism in the stretches of non...

Fewer children in the United States are getting vaccinated. That’s bad news for those kids, and also for public health in general. Often, the response is to argue and debate and get angry at people who are we see as making terrible,...

This week, scientists announced great news about our brains and those discoveries may help us find the cure for a number of diseases and disorders.

You may have heard about the Six Degrees of Separation phenomenon, but it isn't just a fun celebrity game, it helps scientists understand the spread of epidemics, the structure of the internet, and even the neural networks in your brain!