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
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!
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.
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...
SciShow
Why Can't You Donate Platelets After Taking Aspirin?
Curious why you can't donate platelets after taking aspirin? Wonder no more!
SciShow
Weird Things Whales Lost on Their Journey to the Sea
When the ancestor of cetaceans went back into the water some 50 million years ago, it left a few things behind—including the functioning of certain genes that seem like they’d be hard to live without.
SciShow
How Birds Really See the World
Ever wonder what it looks like from a birds-eye-view? Hank explains they see more than you think!
TED Talks
Eva Vertes: Meet the future of cancer research
Eva Vertes -- only 19 when she gave this talk -- discusses her journey toward studying medicine and her drive to understand the roots of cancer and Alzheimer’s.
SciShow
Why People are Always Fighting Over the Thermostat
Negotiating thermostat settings can be really frustrating, but your officemate isn't trying to freeze you out on purpose. Stefan explains the science behind why people experience temperatures differently. Fun fact: Stefan wears a jacket...
SciShow Kids
Why Is My Leg Asleep?
Have you ever been sitting down for a long time and had your legs fall asleep? It feels really weird and can make it hard to walk for a little while! So what makes your legs fall asleep, and why does it feel all prickly when they start...
SciShow
What Happens When You Faint?
Why do we faint? Because sometimes, your nervous system just doesn't know what to do with itself.