SciShow
Why Do We Wrinkle When Wet?
Why do your fingers and toes get wrinkly when they’ve been in the water too long? Short answer: Your nerves. Longer answer: Evolution.
SciShow
What’s In Your Brain? | Compilation
Ever stop to ponder how your brain ponders its own complexities? How does it know to tell your limbs to stop moving and have a think? Fear not, because we have answers to many questions about those wrinkly sponges!
SciShow
Why Is My Body Temperature 37 Degrees?
Your body is really good at keeping its temperature at around 37� C, but have you ever wondered why?
SciShow
A User's Guide to the Human Body
If you've ever wondered why you crave certain foods or what your appendix actually does, there's something in this collection for you!
TED-Ed
TED-Ed: The fish that walk on land | Noah R. Bressman
We think of fish as completely aquatic animals. But there are actually hundreds of fish species that are amphibious, meaning that they possess adaptations that enable them to survive on land. Once on land, however, they face suffocation,...
SciShow
How Does Cold Medicine Work?
The cold medicine you picked up at the store involves some cool chemistry to treat your symptoms.
SciShow
8 Medications with Surprising Secondary Uses
Sometimes medications that were developed to treat one condition can end up being useful for seemingly unrelated ailments. Chapters View all DEXTROMETHORPHAN & PSEUDOBULBAR AFFECT 1:48 MEMANTINE & OCD 2:25 NALTREXONE & BEHAVIORAL...
SciShow
Where Are All the Dinosaur Brains?
We've found plenty of dinosaur bones all around the world, but is it possible to find any fossilized soft tissues from ancient animals?
SciShow
Why Do I Have Varicose Veins?
Usually, the 160,000 kilometers of blood vessels in your body work incredibly smoothly. However, the forces of age, weight gain, and gravity can conspire to cause lumpy varicose veins.
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
Why Do My Eyes Glow Red in Photos?
You know how sometimes your eyes glow bright red in photos, making you look like a scary demon and ruining a priceless family memory? Well, there's a pretty cool reason it happens and ways to stop it! Learn about both in today's QQ!
Crash Course
Sympathetic Nervous System: Crash Course A&P
Hank tries not to stress you out too much as he delves into the functions and terminology of your sympathetic nervous system. -- Table of Contents Sympathetic Nervous System Controls the Body's Stress Response 0:26 How Signals Travel to...
SciShow
What Glowing Fish and Your Dress Shirt Have in Common
Fluorescent molecules are useful for a lot more than just making you look cool at your local rave. Fluorescence turns out to be a kind of chemical superpower that lets us tackle all kinds of problems, from solving crimes to saving lives!
SciShow
Immune NETs: What COVID and Snake Venoms Have in Common
When faced with threats ranging from snake bites to COVID infections, some white blood cells retaliate with a peculiar tactic: spewing out their own DNA to form pathogen-trapping nets. But research suggests that sometimes this...
SciShow
Robot Surgeons and 4 Other Medical Advances That Sound Like Sci-Fi
Modern medicine is wonderful, but even in a world where open-heart surgery and brain-scanning headsets sound almost mundane, some medical advances do truly seem like science fiction. From robot-assisted microsurgery to reanimated organs,...
SciShow
Why Do Some Doctors Still Use Bloodletting?
Has a doctor ever told you that you just have too much blood? Probably not, but there are a handful of conditions where being a little low might be good for you.
SciShow
Why Don't Penguins' Feet Freeze?
How do they do it? Penguins standing on ice, not only for days, but their whole lives! And their feet don’t hurt like ours would. It has something to do with blood and an amazing twist that penguins have developed.
TED Talks
TED: Could this laser zap malaria? | Nathan Myhrvold
Nathan Myhrvold and team's latest inventions -- as brilliant as they are bold -- remind us that the world needs wild creativity to tackle big problems like malaria. And just as that idea sinks in, he rolls out a live demo of a new,...
SciShow
How Did We Figure Out What a Heart Attack Was?
Heart attacks are the number 1 cause of death worldwide in the 21st century, but we weren't sure what caused them until 1980.
SciShow
Cheers to the Science of Booze
Happy New Years! Ring in the new year the right way....by learning all about alcohol! The Science of Hangovers 0:35 Does Alcohol Kill Brain Cells? 3:42 Does Alcohol Keep You Warm? 5:46 Why Does Alcohol Burn When You Drink It? 7:21 Why...
SciShow
Which is Worse For You Sugar or Fat
For decades, we’ve heard how terrible fat is for us, but more recently, sugar has become the new villain. What does the science actually say about these two macronutrients and how they affect our health?
SciShow
These 'Fossilized Brains' Might Not Be Brains At All
A new study calls the claims of fossilized brains into question, and another finds ichthyosaurs might have been bigger than our current champions, the blue whales.
SciShow
SciShow Quiz Show: The Ultimate Tiebreaker
Each of these contestants has won against the other on Quiz Show before. But this time, we will truly find out who is the best!
TED-Ed
TED-Ed: How does your body process medicine? - Celine Valery
Have you ever wondered what happens to a painkiller, like ibuprofen, after you swallow it? Medicine that slides down your throat can help treat a headache, a sore back, or a throbbing sprained ankle. But how does it get where it needs to...