SciShow
Why Does Spicy Taste 'Hot' and Minty Taste 'Cool'?
A Quick Question answer that explains the chemistry that makes minty things taste “cool” and spicy things taste “hot”.
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...
Bozeman Science
The Neuron
In this video Paul Andersen explains the basic anatomy of a neuron; including the dendrites, cell body, axon hillock, axon, and axon terminal. He also describes how neurons are classified both structurally and functionally.
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...
TED Talks
Elliot Krane: The mystery of chronic pain
We think of pain as a symptom, but there are cases where the nervous system develops feedback loops and pain becomes a terrifying disease in itself. Starting with the story of a girl whose sprained wrist turned into a nightmare, Elliot...
SciShow
Yet More Evidence That Vaping Is Probably Terrible | SciShow News
Did you know that your body's fight-or-flight response to danger may, in part, come from inside your bones? Plus, another study suggests that vaping may impair to your ability to fight off lung infections.
SciShow Kids
All About Your Body! | Human Body Compilation
The human body is a complicated thing! To be able to move, fight off diseases, and even see colors, lots of different systems and organs need to work together. Squeaks' robot body is pretty complicated, too, so Jessi has put together a...
SciShow
How Do Animals Change Color?
Changing colors -- it’s not just for chameleons! Many species of octopuses, squid and cuttlefish can do it, as well as a few insects, and even mammals and birds. Find out what feats of biology different animals use to change their...
Crash Course
Tissues, Part 1: Crash Course A&P
In this episode of Crash Course Anatomy & Physiology, Hank gives you a brief history of histology and introduces you to the different types and functions of your body's tissues. -- Table of Contents: Nervous, Muscle, Epithelial &...
Crash Course
Solutions: Crash Course Chemistry
This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar...
SciShow
Do You Have a Maximum Heart Rate?
Does your heart rate have an upper limit and could you ever reach it?
Bozeman Science
Organ Systems
Paul Andersen explains how organs work together to form organ systems and how organ systems work together to form organisms. The kidney and bladder work together to filter blood in the excretory system. The circulatory and respiratory...
SciShow Kids
Use Your Brain!
You've had a lot of fun learning new stuff with us on SciShow Kids, but have you ever wondered how and why you remember all that awesome knowledge? Join Jessi and Squeaks to learn about how your brain helps you learn, and way more!
Crash Course
The Nervous System - CrashCourse Biology
Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body.
TED-Ed
TED-Ed: What causes seizures, and how can we treat them? | Christopher E. Gaw
Nearly 3,000 years ago, a Babylonian tablet described a curious illness called "miqtu" that caused symptoms ranging from facial twitching to full body convulsions. Today we know miqtu as seizures, and modern medicine has developed...
SciShow Kids
How Do Our Bodies Move?
A SciShow Kids viewer wants to know: How Do Our Bodies Move? Jessi explains, while Squeaks works out!
Crash Course
Endocrine System, part 1 - Glands & Hormones: Crash Course A&P
Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of cells...
Crash Course
Emotion, Stress and Health: Crash Course Psychology
So, it turns out we have an easy time reading emotions in facial expressions, but emotions can straight up kill us! In this episode of Crash Course Psychology, Hank discusses stress, emotions, and their overall impact on our health. --...
Infognostica
Five dietary deficiencies that cavemen didn't have...
Our modern diet is rife with specific dietary deficiencies. This explores just 5 discrepancies between our diet, and that of our primal ancestors. Fig Leaf Rag Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By...
Curated Video
Hypothalamus
A small but important region of the brain that monitors and regulates many body systems that we do not control consciously. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
Factpack: Pregnancy Timeline
See what's happening during different stages of pregnancy, as the baby changes from conception to birth. Biology - Being Human - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use...
Curated Video
Golden Jellyfish
Welcome to Jellyfish Lake – home to the unusual golden jellyfish. Biology - Animal Kingdom - Learning Points. The golden jellyfish is a unique subspecies, found in just one lake in the Republic of Palau. Golden jellyfish have a symbiotic...
Curated Video
Harmful Drugs: Ecstasy
Ecstasy, also known as MDMA, is one of the most commonly used harmful drugs. How does the drug affect the brain and body, and what are the long-term repercussions associated with its use? Biology - Healthy Living - Ecstasy is a drug...
Curated Video
Factpack: Mercury in Food Chains
Discover how mercury travels through food chains, and how its concentration multiplies along the way. Biology - Ecosystems - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to...