Curated Video
How Being Sick Changes Your Brain
When you're sick you just want to be left alone. Sometimes that's because you physically can't move, but other times, it might have more to do with the way your immune system is connected to your brain.
SciShow Kids
Why Do We Blink?
Ever have a staring contest? Why is it so hard?! Jessi answers a question from a curious SciShow Kids viewer: Why do we blink?
TED-Ed
TED-Ed: How turtle shells evolved... twice - Judy Cebra Thomas
Check out the fascinating science behind the evolution of the turtle shell, over 260 million years in the making. -- Modern turtle shells are almost as diverse as the turtles themselves. Sea turtles have flatter, lighter shells for...
TED Talks
Roger Hanlon: The amazing brains and morphing skin of octopuses and other cephalopods
Octopus, squid and cuttlefish -- collectively known as cephalopods -- have strange, massive, distributed brains. What do they do with all that neural power? Dive into the ocean with marine biologist Roger Hanlon, who shares astonishing...
TED-Ed
TED-Ed: How big is the ocean? - Scott Gass
While the Earth's oceans are known as five separate entities, there is really only one ocean. So, how big is it? As of 2013, it takes up 71% of the Earth, houses 99% of the biosphere, and contains some of Earth's grandest geological...
Crash Course
Homunculus - Crash Course Psychology
HOMUNCULUS! It's a big and weird word that you may or may not have heard before, but do you know what it means? In this episode of Crash Course Psychology, Hank gives us a deeper understanding of this weird model of human sensation.
SciShow
Could an Old Vaccine Help Against COVID-19?
By studying population-level epidemiological trends, researchers have noticed that an old vaccine for tuberculosis may provide some protection against COVID-19.
TED-Ed
TED-Ed: How do blood transfusions work? | Bill Schutt
In 1881, doctor William Halsted rushed to help his sister Minnie, who was hemorrhaging after childbirth. He quickly inserted a needle into his arm, withdrew his own blood, and transferred it to her. After a few uncertain minutes, she...
SciShow Kids
What are Boogers?
What’s that stuff up your nose? Does it do anything? SciShow Kids explains the science of boogers!
SciShow Kids
Why Do Dogs Pant?
When people run around on a hot summer day, their sweat can help them cool off! But dogs can't sweat, and they have big, furry coats! So what can they do to stay cool?!
SciShow
Does Alcohol Really Keep You Warm?
As if you needed any more proof that alcohol just makes weird stuff happen, Quick Questions explains why alcohol can make you /feel/ warm, when it's actually making your body colder. You'll never think of brandy the same way again!
SciShow
Does Getting COVID-19 Make You Immune to It? | SciShow News
Like a common cold or a cold sore, would it be possible to get a reinfection of COVID-19? Would we be able to build up long-term resistance to it?
SciShow
Bizarre Creatures of the Deep Sea | Compilation
There are some weird animals out there, but few environments have produced stranger creatures than the deep ocean!
SciShow
5 Toxins Animals Steal For Themselves
Thievery is a known survival strategy in the wild. But you couldn’t steal a toxin...or could you? Meet 5 animals that turn someone else’s poison into their own weapon of choice. PORE-FORMING TOXINS 0:50 BIRDS-FOOT TREFOIL 2:45 SIX-SPOT...
SciShow
Are Your Eyes Part of Your Brain?
When you think of a brain, you probably imagine that pink, wrinkly organ in your skull, but we don’t have to stop there! Neither the brain’s functions, nor its cells, are confined to the organ we normally think of as the brain.
TED-Ed
TED-Ed: Ancient Rome’s most notorious doctor - Ramon Glazov
Learn about the Greek physician and philosopher Galen of Pergamon, whose experiments and discoveries changed medicine. -- In the 16th century, an anatomist named Andreas Vesalius made a shocking discovery: the most famous human anatomy...
TED Talks
Nina Tandon: Could tissue engineering mean personalized medicine?
Each of our bodies is utterly unique, which is a lovely thought until it comes to treating an illness -- when every body reacts differently, often unpredictably, to standard treatment. Tissue engineer Nina Tandon talks about a possible...
TED Talks
Tony Wyss-Coray: How young blood might help reverse aging. Yes, really
Tony Wyss-Coray studies the impact of aging on the human body and brain. In this eye-opening talk, he shares new research from his Stanford lab and other teams which shows that a solution for some of the less great aspects of old age...
SciShow
Estivation: How Mucus Saved My Life
Learn how some animals have adapted to survive in some of the hottest and driest environments in the world, by covering themselves in mucus and calling it good.
Crash Course
Metabolism & Nutrition, part 2: Crash Course A&P
If you're like us, you love the sound of a brunch buffet. But not everything you eat at that glorious buffet is going to be turned into energy. Your body has to work with different forms of food in different ways. In this episode of...
SciShow
Why Smoking Makes It Harder to Heal
If a doctor has told you to quit smoking, that's not just because they're worried about lung cancer. Those cigarettes are messing up your body's natural healing process in more ways than one.
SciShow
What Happens if Your Body is Exposed to the Vacuum of Space?
Hank answers a SciShow viewer's most pressing question about what happens if the human body gets exposed to space. Would your head really explode?
SciShow
SciShow Talk Show: Ecology Project International & Serpentina the Rubber Boa
This week on the SciShow Talk Show Haley Hanson joins us from Ecology Project International to talk about how they bring high school students into the field to help with research and learn about ecology and conservation. Then Jessi from...
SciShow
How Do Laxatives Work?
Even though we're all probably very experienced poopers, sometimes we need a little help.