SciShow
What Causes Brain Freeze?
That terrible pain the befalls us when enjoying an icy treat! How does that happen? Is there a cure? Let Hank explain.
SciShow
Why Does Getting Kicked in the Groin Hurt SO Much?
Getting kicked anywhere hurts, but getting kicked in the groin REALLY hurts for a few different reasons.
SciShow
Why Don’t Humans Have Whiskers?
You might have a beard, or a mustache, or even a soul patch. What you don't have are whiskers.
SciShow
Hardcore Mice use Scorpion Venom as a Painkiller
Grasshopper mice take scorpion venom that could kill a human and use it to numb their pain. What makes these tiny mice so hardcore?
SciShow
Should You Worry About Alcohol Causing Cancer?
The American Society of Clinical Oncology recently released an official statement about alcohol and cancer, but the information isn't as extreme as some headlines would imply. Also, scientists at Duke University have found evidence that...
SciShow
Why Do Workout Drinks Make My Skin Tingle
Ever get a tingling sensation while getting your sweat on? The ingredients to your drink may be why.
SciShow
Why Are Paper Cuts So Painful?
Paper cuts are tiny compared to other injuries you may have experienced, but they hurt… A LOT! This has to do with your hands being pretty sensitive, and the fact that the edges of paper are like tiny saws.
Bozeman Science
Effects of Changes in Pathways
Paul Andersen explains how changes in the signal transduction pathway can affect organisms. He begins with a brief discussion of the tetrodotoxin produced by the California Newt and then explains how anthrax affects adenylate cyclase and...
SciShow
3 Terrible Old-Timey Ways to (Not) Lose Weight
From sauna pants to fat jigglers, people used to try to lose weight in some rather unconventional ways. They really did not work.
TED-Ed
TED-Ed: Why do we itch? - Emma Bryce
The average person experiences dozens of individual itches each day. We've all experienced the annoyance of an inconvenient itch - but have you ever pondered why we itch in the first place? Is there actually an evolutionary purpose to...
Be Smart
How Many Smells Can You Smell?
We walk through life led by our noses. Literally. Because they're on the front of our faces. How does the sense of smell work, and how sensitive are our noses? Why are smell-related memories so vivid? How many different smells could we...
SciShow
3 Big Discoveries Made by the International Space Station
We all know it's awesome, and we could watch Chris Hadfield sing all day, but do you know about the awesome science that's being done on the International Space Station? Hank explains three big discoveries made on the ISS that you should...
SciShow
What's the Weird Face We Make When We Touch Our Eyes
Why does your mouth hang open and cause you to make a silly face when you use eye drops or put on mascara?
Be Smart
Why Your Brain Is In Your Head
Part 1 of 3 in my series about why our bodies are shaped the way they are.
SciShow
Why Does Sugar Make My Teeth Hurt?
Picture this: you're gorging on leftover Halloween candy. You take a bite of a fun-size chocolate bar and instead of sugary goodness, you get a flash of blinding pain in your tooth! What's the deal?
SciShow Kids
Why Don’t Haircuts Hurt?
Jessi is getting a haircut later, but what makes it so that your hair doesn't hurt when you go to get it cut?
TED-Ed
TED-Ed: How your digestive system works - Emma Bryce
Constantly churning inside of you, the digestive system performs a daily marvel: it transforms your food into the vital nutrients that sustain your body and ensure your survival. Emma Bryce traces food's nine-meter-long, 40-hour journey...
SciShow
How Mind-Controlling Parasites Teach Us About Brains
Some parasites can hijack the brains of their victims and cause them to behave in strange ways, but how they do it, and do we humans need to be worried?
SciShow
The Future Of Back To The Future
We're going back to the future! The real-life 2015 looks a little different than the movie version, though.
SciShow
Why Do We Have Blind Spots?
Your brain is lying to you about what you see-- find out why in this Quick Question!
SciShow
The Secret of Regeneration in... Alligators
Why can amphibians, fish and even some reptiles regenerate limbs, while birds and mammals can’t? Researchers think they might have found a clue on the tip of the alligator’s tail.
SciShow
Why Does Putting a Finger Under Your Nose Stop a Sneeze?
Sometimes sneezing can be really inconvenient, but why does a technique made popular by cartoon shows seem to be effective at stopping them?
TED-Ed
What causes cavities? - Mel Rosenberg
When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes. So what causes cavities, and how can we avoid them? Mel...
Bozeman Science
Muscle Control Puppet
The people at Backyard Brains use a spiker box to turn me into a puppet.