SciShow
Does Alcohol Really Keep You Warm?
As if you needed any more proof that alcohol just makes weird stuff happen, Quick Questions explains why alcohol can make you /feel/ warm, when it's actually making your body colder. You'll never think of brandy the same way again!
SciShow
Magenta Is All In Your Head
The world is full of colors. Almost all of them can be described by a wavelength of visible light, but there are some colors out there that are just in your head!
Crash Course
Sympathetic Nervous System: Crash Course A&P
Hank tries not to stress you out too much as he delves into the functions and terminology of your sympathetic nervous system. -- Table of Contents Sympathetic Nervous System Controls the Body's Stress Response 0:26 How Signals Travel to...
SciShow
Why Does Alcohol Burn When You Drink It?
Why does alcohol cause that burning sensation on its way down?
SciShow
Chemical Earmuffs: The Future of Hearing Protection? | SciShow News
A group of scientists this week has found a chemical trick that might one day help block the harmful effects of loud noises on our ears, and another has built an underwater robot to take a look underneath Thwaites glacier.
SciShow
Why Do Some Drugs Make Your Pupils Wider?
How do your pupils work and why do some substances make them dilate?
SciShow
What Causes Runner's High?
After a good distance of running, you might have felt a sensation of happiness. That is the runner's high and some chemicals in your body cause it.
SciShow
CBD: Marijuana Without the High
Warning: Contains talk of cannabis. CBD: Marijuana Without the High
SciShow
Female Viagra' & New Insights Into Narcolepsy
Recent research has offered some new insights into our biochemistry -- from a proposed drug for sexual arousal to a possible link between the flu and narcolepsy.
SciShow
How Weed Works: THC
Hank explains the science behind the effects of that wackiest of weeds, cannabis sativa - aka marijuana.
SciShow
Animals Getting Bigger, and How Cannabis Causes Hunger
SciShow News delves into the history of marine animals and finds that they’re getting bigger, and unlocks the secret of how cannabis creates one of its most medically useful effects.
SciShow
Why Do Itches Make You Chase Them?
Have you ever said, "No, a little to the left," during a back scratch because the itch itself seemed to move? Well, it has to do with how your nerves and brain respond to the sensation.
SciShow
What's the Most Bitter Chemical
There is a chemical so bitter you can taste it in an Olympic-sized swimming pool and you probably have it in your home without even knowing it.
SciShow
How Quantum Mechanics Affects Your Life
While you might not think about quantum mechanics being part of your everyday life, it turns out that it might play a role in some of the most familiar things, from the sunlight in the trees to the nose on your face! Chapters View all...
Crash Course
The Chemical Mind - Crash Course Psychology
BAHHHHHH! Did I scare you? What exactly happens when we get scared? How does our brain make our body react? Just what are Neurotransmitters? In this episode of Crash Course Psychology, Hank takes us to the simplest part of the complex...
Amoeba Sisters
Intro to Cell Signaling
Explore cell signaling with the Amoeba Sisters! This introductory video describes vocabulary such as ligand and receptor. It includes the stages of cell signaling (reception, transduction, and response) and different types of signaling...
SciShow
What is Salvia?
Salvia divinorum, despite sounding like a spell from the world of Harry Potter, can't turn you into an inanimate object, make you leave your body, or set your feet on fire. However, it can make you FEEL like all of those things are...
TED-Ed
TED-ED: The science of spiciness - Rose Eveleth
When you take a bite of a hot pepper, your body reacts as if your mouth is on fire -- because that's essentially what you've told your brain! Rose Eveleth details the science and history behind spicy foods, giving insights into why some...
SciShow
Why Does Spicy Food Burn When You Poop?
Sometimes your body won't let you forget that spicy burrito you had yesterday!
SciShow
Antihistamines for Everything?
When you think of antihistamines, you're probably only thinking about getting rid of a runny nose, but we're learning that antihistamines can be used for nausea, insomnia, and even depression!
SciShow
Why Can the Same Drug Treat Heart Attacks and Anxiety?
Drugs that treat heart failure are also prescribed for anxiety? What's up with that?
MinuteEarth
Why Some Molecules Have Evil Twins
A tiny change in a molecule’s geometry completely changes its effects on the human body. ___________________________________________ If you want to learn more about this topic, start your googling with: Enantiomers: Molecules that are...
SciShow
Why Is There an Opioid Crisis?
Last week, the opioid epidemic was declared a "public health emergency' in the United States, but what are opioids, and why is the way they interact with the human brain potentially so dangerous?
SciShow
Why Do Batteries Taste Sour?
If you put your tongue on a 9-volt battery it might taste sour, kind of like lemonade, but why does that shock have a flavor?