SciShow
The Next ISS Experiments, and Pluto's Weird Methane Mountains
A new crew is headed to the ISS, and Pluto seems to have methane snow.
SciShow
What Happens If You Go Without Water?
Ever wondered what happens to your body if you don't get enough water? Our bodies are mostly water by weight, so in today's episode of SciShow Hank explains what happens to your body as it starts to shut down when you go without that...
TED-Ed
TED-Ed: The surprising reason our muscles get tired - Christian Moro
Why do our muscles get tired and sore after exercise? Explore how our muscles function, and how you can exercise longer without experiencing muscle fatigue. -- You're lifting weights. The first time feels easy, but each lift takes more...
Crash Course
Peripheral Nervous System: Crash Course A&P
It is now time to meet the system that helps your crazy brain stay in touch with the outside world. We follow up last week's tour of the central nervous system with a look at your peripheral nervous system, its afferent and efferent...
TED-Ed
TED-ED: The weird and wonderful metamorphosis of the butterfly - Franziska Bauer
In order to become a butterfly, a caterpillar's body dissolves almost completely and is rebuilt from its own juices. Butterflies are just a few of the 800,000 insect species that transition from larvae to adults through complete...
Crash Course
Autonomic Nervous System: Crash Course A&P
Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical...
SciShow Kids
Why Do We Get Hiccups?
Hiccups can be really annoying and hard to get rid of, but do you know why they happen? Find out the answer and learn more about how your lungs work at the same time on today's SciShow Kids!
SciShow
Is Sitting up Straight Actually Good Posture
Spines are naturally curved, not straight, so what good posture actually looks like isn't as straightforward as you might think.
SciShow
Why Are Cheetahs the Fastest Land Animal?
Cheetahs are fast. You know this. But which is faster: a cheetah, or a Tyrannosaurus rex?
Crash Course
Great Glands - Your Endocrine System: CrashCourse Biology
Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development & function.
SciShow
Does Stretching Before Exercise Actually Help?
It seems like a good idea to stretch before exercising, but does it actually prevent injuries, or improve your performance?
Bozeman Science
Fight or Flight Response
Paul Andersen explains how epinephrine is responsible for changes in chemistry of our body associated with the fight or flight response. Epinephrine released by the adrenal medulla are received by a number of organs associated with the...
SciShow
Is exercising indoors harder? #shorts #science #SciShow
Is exercising indoors harder? #shorts #science #SciShow
Crash Course
Muscles, part 2 - Organismal Level: Crash Course A&P
Hank calls in a friend to do his push ups for him today to explain how skeletal muscles work together to create and reverse movements. Hank and Claire also demonstrate the role size plays in motor units, the three phase cycle of muscle...
SciShow
Why Do Prosthetic Limbs Feel Way Heavier Than Biological Ones?
Because biological limbs are connected to our skeletons, we don't notice that they weigh a lot! As technology develops, scientists have designed lighter, more functional prostheses and the latest can even use the skeleton like a...
SciShow
How Plants Tell Time
Plants don’t have brains or muscles, and yet some of them can perform such feats as eating insects or following the sun. Scientists haven’t completely figured out how this happens, but they do have some pretty strong leads.
SciShow
Understanding ALS & SciShow News Takes the Ice Bucket Challenge
SciShow News explains the science behind ALS, the disease that has inspired millions to take the Ice Bucket Challenge. Learn what ALS is, what we do and don’t know about it, and watch SSN hosts take the challenge themselves!
TED-Ed
TED-ED: How your muscular system works - Emma Bryce
Each time you take a step, 200 muscles work in unison to lift your foot, propel it forward, and set it down. It's just one of the many thousands of tasks performed by the muscular system: this network of over 650 muscles covers the body...
SciShow
What Happens When You Get Electrocuted?
Most of the cases we call “electrocutions” are actually electric shocks: an electric current running through a body. Whether an electric shock becomes an electrocution depends on the nature of the current involved.
MinuteEarth
The Hidden Side Of Proteins
You might already know that proteins are a fundamental part of your diet, but they're much more than that.
SciShow
Victorian Pseudosciences: Brain Personality Maps
in 19th-century England, scientists were figuring out that certain parts of our brains were connected with certain parts of our bodies- but they came up with some terrible and misleading ideas that spread without rigorous scientific...
SciShow
What's the Fastest Speed a Person Could Run
World-class sprinters just keep getting faster, with some running over 40 kilometers per hour! That kind of makes you wonder… how much faster can humans get?
SciShow Kids
Your Super Skeleton!
Maybe you’ve seen skeletons in museums, or in Halloween decorations, but do you know how powerful your skeleton really is? Learn some fun facts about your bones!