TED Talks
Dean Ornish: Healing through diet
Dean Ornish talks about simple, low-tech and low-cost ways to take advantage of the body's natural desire to heal itself.
SciShow
The Mosquito That Doesn’t Bite You, Even Though It Could
If you know one thing about mosquitoes, it’s probably their lust for blood. But there’s actually one species that almost never bites, even though it can. Could finding out why help us combat blood-borne diseases?
SciShow
Can Hanging Upside Down Kill You?
When you were a kid, did anyone ever tell you that your head would explode if you hung upside down for too long? Well... they might have been on to something.
Amoeba Sisters
Circulatory System and Pathway of Blood Through the Heart
Join the Amoeba Sisters in their introduction to the circulatory system and follow the pathway of blood as it travels through the heart! This video explains the importance of blood, arteries, and veins, and it also introduces basic heart...
SciShow
Why Do We Get Nosebleeds?
One moment, you're fine. The next, moment it seems like your nose is recreating a scene from The Shining. Why do we get nosebleeds?
SciShow
Space Medicine: What We Need and What We Have
If we're going to send astronauts out to Mars someday, we'll need to figure out how to send a pharmacy with them
SciShow
How Your Blood Type Protects and Hurts You
Did you know that your blood type affects more than just who you can donate blood to?
TED Talks
TED: Sci-fi stories that imagine a future Africa | Nnedi Okorafor
My science fiction has different ancestors -- African ones, says writer Nnedi Okorafor. In between excerpts from her "Binti" series and her novel "Lagoon," Okorafor discusses the inspiration and roots of her work -- and how she opens...
TED Talks
Brian Goldman: Doctors make mistakes. Can we talk about that?
Every doctor makes mistakes. But, says physician Brian Goldman, medicine's culture of denial (and shame) keeps doctors from ever talking about those mistakes, or using them to learn and improve. Telling stories from his own long...
SciShow Kids
Why Do Mosquito Bites Itch?
Why are mosquito bites so itchy? Stop scratching while Jessi explains!
SciShow
Where Do Camels Store Their Water?
When camels drink, they do so at a rate that would kill most other animals. But where does all of that water go? Hint: It's not their humps!
SciShow
Why These Weird Carnivores Smell Like Popcorn
If it smells like delicious buttered popcorn when you are in a middle of the forest, it’s not because there’s a movie theater nearby, but Binturongs, arboreal carnivore, might be.
SciShow
What Are Eyeballs Made Of?
Eyeballs are unique organs, providing many animals with the ability to interpret the light waves in the world around them, but what are these squishy parts made of?
Amoeba Sisters
Multiple Alleles (ABO Blood Types) and Punnett Squares
Learn how to set up and solve a genetic problem involving multiple alleles using ABO blood types as an example!
TED-Ed
TED-Ed: Why plague doctors wore beaked masks | TED-Ed
The year is 1656. Your body is wracked by violent chills. Your head pounds and you're too weak to sit up. In your feverish state, you see a strange-looking man wearing a beak-like mask, his body covered from head to toe. Without seeing...
SciShow
Horseshoe Crabs Saved My Life
Horseshoe crabs aren't really crabs, but they are super old, super cool, and they deserve your respect. Because they may have already saved your life. SciShow explains!
TED Talks
TED: What a driverless world could look like | Wanis Kabbaj
What if traffic flowed through our streets as smoothly and efficiently as blood flows through our veins? Transportation geek Wanis Kabbaj thinks we can find inspiration in the genius of our biology to design the transit systems of the...
SciShow
What If Your Arm Falls Off Right After a Vaccine?
If you lost your arm almost immediately after being vaccinated, would you still be vaccinated?
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
7 of Australia's Most Terrifying Inhabitants
If you've spent any time on the internet, you know that Australia is host to all sorts of horrible spiders and snakes. But that doesn't even begin to cover the myriad of dangerous, sometimes deadly, plants and animals you might encounter...
SciShow
Could We Breed Giant Spiders?
If, for some wild reason, we decided that breeding humongous spiders was a good idea, could we actually pull it off?
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
How Liver Problems Can Lead to Brain Disease
We tend to focus on the brain in psychology, but it's part of an entire system! Other organs, even your liver, play a big role in psychological health.
Bozeman Science
Unit 4 Review - Homeostasis
Paul Andersen reviews the major concepts within the fourth unit of the new AP Biology framework. He begins by differentiating between negative and positive feedback loops. He explains how a stable internal environment is maintained...