Bozeman Science
The Digestive System
Paul Andersen starts with a brief description of feeding methods. He then details all of the major parts within the human digestive system. This tour starts in the mouth, move down the esophagus, through the stomach, small investing,...
TED Talks
TED: How Black girls can reclaim their voice in music | Kyra Gaunt
How does music shape us? Digital ethnomusicologist and TED Fellow Kyra Gaunt studies how Black girls can preserve the integrity of their own voices while listening, dancing and singing to pop songs largely engineered by men, often with...
Crash Course
Digestive System, Part 1: Crash Course A&P
Nachos are delicious. And versatile because today they're also going to help us learn a thing or two about your digestive system. Nachos can provide us with energy and raw materials, by first ingesting something nutritious, propelling it...
SciShow
What Causes Food Cravings?
Why do I really, really want ice cream right now? Today we explore the science of food cravings!
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
Why Does Your Stomach Make Noises?
Your digestive system makes weird noises sometimes. You can't really stop it from happening, but you can find out why it happens in the first place!
SciShow
What Causes Morning Sickness?
If you've ever been pregnant, or been around a pregnant lady, you know that the agony that is morning sickness -- and it's not just something that happens in the morning! SciShow explains the many theories about what causes it.
TED-Ed
TED-Ed: The surprising cause of stomach ulcers - Rusha Modi
It's a common misconception that stomach ulcers are caused by emotional upset, psychological distress, or spicy food. Yet no convincing study has ever demonstrated that these factors directly cause ulcer disease. So what does cause...
SciShow
The 5 Most Important Molecules in Your Body
Your body has all sorts of complicated processes going on, and a lot of them are carried out by incredibly powerful molecules. We're not talking nutrients -- we're talking about 5 of the molecules that keep you ticking!
SciShow
Carnivorous Sponges — So That's a Thing
There aren't many creatures as safe and chill as the humble sea sponge, right? Well, not so fast! It turns out there's a whole family of carnivorous sponges that trap and eat small animals using spines and migrating stomaches!
TED-Ed
TED-ED: What does the pancreas do? - Emma Bryce
Beneath your ribs, you'll find, among other things, the pancreas -- an organ that works a lot like a personal health coach. Emma Bryce explains how this organ controls your sugar levels and produces a special juice that releases the...
SciShow
Does Drinking Alcohol Kill Your Gut Bacteria?
Alcohols are used to disinfect things all the time, which makes drinking them sound bad for the helpful critters in your gut. But, turns out, drinking in moderation could actually be good for your microbiome.
Crash Course
Digestive System, part 2: Crash Course A&P
Nearly 200 years ago, Alexis St. Martin was shot in the stomach. He was saved by local army doctor William Beaumont, but had to live out his remaining years with a gaping hole in the stomach -- allowing Beaumont to learn a lot about how...
SciShow
Why Do We Burp and Fart (So Much)?!
We all do it, but why? Hank explains the whys and hows of our gaseous emissions.
SciShow
Why Can't You Digest Grass?
You've probably seen cows enjoying a nice mouthful of grass, but why can't we do the same?
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
Do You Really Have a New Body Every 7 Years?
You may have heard the rumor. Every seven years your body becomes a whole new person. But is there anything to this? Check out this SciShow episode to find out!
TED-Ed
TED-Ed: How does your body know you're full? - Hilary Coller
Hunger claws at your belly. It tugs at your intestines, which begin to writhe, aching to be fed. Being hungry generates a powerful and often unpleasant physical sensation that's almost impossible to ignore. After you've reacted by...
Crash Course
Digestive System, part 3: Crash Course A&P
Nachos are great...if you are among the lucky ones whose body can digest them. When digestion goes according to plan, the small intestine performs most of your chemical digestion in the duodenum, while accessory organs including the...
SciShow
Why Does Coffee Make You Poop?
It's common knowledge: you drink a lot of coffee, you're definitely going to poop. What isn't common knowledge is why your body reacts that way
SciShow
Why Do You Get Hangry?
Hanger is the grumpiness you feel when you are hungry. We've all been there, but what's the science behind it?
TED-Ed
TED-Ed: How does alcohol make you drunk?
Ethanol: this molecule, made of little more than a few carbon atoms, is responsible for drunkenness. Often simply referred to as alcohol, ethanol is the active ingredient in alcoholic beverages. So how exactly does it cause drunkenness,...
SciShow
The Agony of Motion Sickness
What happens when your senses come into conflict with each other? In this episode of SciShow, Hank talks about motion sickness: why we have this nauseating experience and how we can avoid it or treat it.
TED-Ed
TED-Ed: How mucus keeps us healthy - Katharina Ribbeck
Your body produces more than a liter of mucus every day, and when you're sick, it can be hard to miss. But what exactly is mucus? And what does it do, besides making you miserable? Katharina Ribbeck reveals the mysteries of this...