TED-Ed
Meet the bluefin tuna, the toughest fish in the sea | Grantly Galland and Raiana McKinney
What's as big as a polar bear, swallows its prey whole, and swims at forty miles an hour? It's not a shark or a killer whale... it's the Atlantic bluefin tuna— the largest and longest-lived of the 15 tuna species. Its unique set of...
TED-Ed
TED-Ed: The surprising reason you feel awful when you're sick - Marco A. Sotomayor
It starts with a tickle in your throat that becomes a cough. Your muscles begin to ache, you grow irritable, and you lose your appetite. It's official: you've got the flu. It's logical to assume that this miserable medley of symptoms is...
TED-Ed
TED-Ed: Why is it so hard to cure ALS? - Fernando Vieira
Amyotrophic Lateral Sclerosis (ALS), also called motor neuron disease and Lou Gehrig's Disease, affects about two out of every 100,000 people worldwide. When a person has ALS, their motor neurons - the cells responsible for all voluntary...
SciShow
Why You Can't Really Sweat Out Toxins
The human body has a few built-in methods for getting rid of toxins. Sweating seems like it should be one of them, but it isn't doing as much as you think.
SciShow
Are Power Poses Super Life Hacks or Super Junk?
Your body language can communicate a lot of information to other people, but can striking a power pose revolutionize your life?
SciShow
What Causes Food Cravings?
Why do I really, really want ice cream right now? Today we explore the science of food cravings!
TED-Ed
TED-Ed: If superpowers were real: Immortality - Joy Lin
What if immortality wasn't just the stuff of epic comic book stories? Is it scientifically possible to be immortal? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere...
TED-Ed
TED-Ed: How breathing works - Nirvair Kaur
We breathe constantly, but have you ever thought about how breathing works? Discover the ins and outs of one of our most basic living functions-- from the science of respiration to how to control your breaths.
SciShow
Technicolor Dream Fish: How Tilefish Flash
Lots of animals can change the color of their skin, but there's nothing quite like the chameleon sand tilefish, which can change its appearance in an instant and flash the colors of the rainbow.
Crash Course
Reproductive System, part 2 - Male Reproductive System: Crash Course A&P 41
Our month-long exploration of human reproduction continues with a look at testicular anatomy, the steps of sperm production, and how it's influenced by gonadotropin and testosterone. Hank also explains how sperm mature, and how they...
TED-Ed
TED-Ed: How do your kidneys work? - Emma Bryce
After drinking a few glasses of water on a hot day, you might be struck with a sudden urge. Behind that feeling are two bean-shaped organs that work as fine-tuned internal sensors. Emma Bryce details how the incredible kidneys balance...
TED Talks
Daniel Lismore: My life as a work of art
Daniel Lismore's closet is probably a bit different than yours -- his clothes are constructed out of materials ranging from beer cans and plastic crystals to diamonds, royal silks and 2,000-year-old Roman rings. In this striking talk,...
SciShow
Human Parasites
Hank tells us about all of the things that live on us or in us - the good, the bad, and the very, very ugly.
SciShow
8 Survival Myths That Will Definitely Make Things Worse
You might think you know how to survive if you end up stranded in the wild, but those tips you read on the internet might just make things worse! Some tips seem too good to be true, and they are. Others are ingrained enough to be common...
SciShow
Why do we Have Earwax?
No Judging: At one point you've probably put a finger in your ear and dug out some rather unsightly ear wax, but why does your body produce this yellowy substance in the first place?
SciShow
Anxiety Hurts
Everybody knows what anxiety feels like - it's annoying and counterproductive and apparently useless, so why does it exist? It turns out your anxiety isn't useless at all - it's a result of the sympathetic nervous system (in charge of...
SciShow Kids
Why Do We Burp?
Everybody does it! But why does it happen? Jessi gives you a look at your digestive system, to discover why we sometimes get a case of the burps.
SciShow
5 Amazing Facts About Babies
You know what's weird? Babies. They cry but don't produce tears; they can crawl before they can ... crawl. And they have MORE BONES THAN YOU! Learn more about these and other odd truths about newborn miniature humans.
SciShow Kids
Why Do We Have Saliva?
Mmmm! The smell of a batch of cookies straight out of the oven is enough to make your mouth water! But have you ever wondered why your mouth waters?! Jessi and Squeaks are here to tell you all about saliva and the many ways it helps you...
Crash Course
Personal Identity: Crash Course Philosophy
Today Hank is building on last week’s exploration of identity to focus on personal identity. Does it in reside in your body? Is it in the collective memories of your consciousness? There are, of course, strengths and weaknesses to both...
TED Talks
TED: How your body could become its own diagnostic lab | Aaron Morris
We need an inside-out approach to how we diagnose disease, says immuno-engineer and TED Fellow Aaron Morris. Introducing cutting-edge medical research, he unveils implantable technology that gives real-time, continuous analysis of a...
TED-Ed
TED-ED: What percentage of your brain do you use? - Richard E. Cytowic
Two thirds of the population believes a myth that has been propagated for over a century: that we use only 10% of our brains. Hardly! Our neuron-dense brains have evolved to use the least amount of energy while carrying the most...
SciShow
Why Do Peaches Make My Mouth Itch?
Allergies can already be a bummer, but did you know they can eventually stop you from enjoying your favorite foods?