MinuteEarth
Why Do Humans Vomit So Much? 🤮
In an effort to protect us from getting killed by something we’ve ingested, our brain’s vomit control center processes a lot of information from several different places … and sometimes is a little overly cautious.
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
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?
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
World's Most Asked Questions How Can I Get Rid of the Hiccups
People ask Google everything under the sun. One of the most commonly searched questions in the world is “How do I get rid of hiccups?” Allow us at SciShow to explain.
SciShow
We Finally Know How Anesthesia Works
Even though doctors have been using general anesthesia for nearly 200 years, they haven’t really understood the details of how it temporarily shuts down your brain — until now.
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?
SciShow
Can You Really Be Scared to Death?
Can you literally "die of fright?" Turns out, you can! In this episode of SciShow Hank explores the mechanisms in your body that activate when you get scared, and how they can sometimes get out of hand.
TED Talks
Todd Kuiken: A prosthetic arm that "feels"
Physiatrist and engineer Todd Kuiken is building a prosthetic arm that connects with the human nervous system -- improving motion, control and even feeling. Onstage, patient Amanda Kitts helps demonstrate this next-gen robotic arm.
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...
SciShow
Animal Magnetism: How Animals Navigate
Hank tells us about new research into the question of how animals navigate from place to place - while the problem is still unresolved, we do have some hypotheses, and they all involve something called "magnetoreception."
Crash Course
Eukaryopolis - The City of Animal Cells: Crash Course Biology
Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies.
Curated Video
How Is Wrist Pain aka Carpal Tunnel Syndrome Treated?
Howcast - Learn about chiropractic care for wrist pain, aka carpal tunnel syndrome, from Dr. Karen Erickson in this Howcast video.
Curated Video
What Are the Surgical Options for Treating Epilepsy?
Howcast - Learn about surgical options for treating epilepsy from Steve Wolf, MD and Patty McGoldrick, NP in this Howcast video.
Curated Video
How to Treat a Pinched Sciatic Nerve
Howcast - A pinched sciatic nerve can produce a variety of symptoms, including shooting pain, numbness, tingling, and weakness. Luckily, this condition is easily treated.
Curated Video
4 Main Risks of Having a Face-Lift
Howcast -Find out the four main risks of having a face-lift in this Howcast video featuring plastic surgeon Robert J. Morin, M.D..
Curated Video
How to Care for Sensitive Teeth
Howcast - A little vulnerability never hurt anyone, but there's one part of you that can be too sensitive—your teeth. Here's how to toughen up your chompers.
Science ABC
Why Does Pooping Feel 'Good?'
The satisfaction, relief, and even pleasure you feel after a good pooping session is due to the stimulation of two nerves: the pudendal nerve and the vagus nerve. Both have slightly different effects, but together, they contribute to...
Science ABC
Why Can’t You Clench Your Fist Right After Waking Up?
When you wake up, it takes some time to get the electrolytes flowing through the muscles in your hands again. That’s why you may not be able to make a fist right after waking up. This effect is more pronounced if you don’t wake up...
Curated Video
Tissue
A collection of cells in an organism that have similar appearance, structure and function. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
Curated Video
Neurons as Networks
Neurons, the brain's electrical signals, control how our bodies work. Discover how they do this and why they are implicit in learning new skills. Biology - Being Human - Learning Points. The human brain has over 100 billion neurons....
Curated Video
Fight or Flight
Danger elicits an instinctive biological response. Find out which hormones control whether we run away, or stand our ground and fight. Biology - Being Human - Learning Points. At the first sight of danger, messages are sent to the brain...
Curated Video
How We Taste
Taste is a survival instinct: we instinctively dislike bitter or sour tastes in case food is off or poisonous. An introduction to the tongue and how it helps us to taste. Biology - Being Human - Learning Points. Taste is a survival...
Curated Video
Synaesthesia
Synaesthesia, or mixed sensory perception, leads people to "see" smells or "hear" colours. Why does this occur and what does this tell us about brain function? Biology - Being Human - Learning Points. Each of our senses has different...