Crash Course
Blood, Part 1 - True Blood: Crash Course A&P
Now that we've talked about your blood vessels, we're going to zoom in a little closer and talk about your blood itself. We'll start by outlining the basic components of blood -- including erythrocytes, leukocytes, platelets, and plasma...
Crash Course
How do Outbreaks End? Vaccines and Recovery: Crash Course Outbreak Science
Throughout this series, and in our real lives, we've seen the chaos and devastation that outbreaks can cause. But there's good news! Eventually, outbreaks come to an end. In this episode, we'll look at some of the important tools of...
SciShow
How Chronic Stress Harms Your Body
We can’t avoid having stress, and that’s not always a bad thing. But if you are dealing with a lot of stress every day, it might cause you physical harm.
SciShow
How 18th-Century Medicine Killed George Washington
What killed George Washington? Turns out it was probably related to the bloodletting and other 18th-century medicine his doctors applied.
TED Talks
TED: A next-gen cure for killer infections | Kary Mullis
(NOTE: This talk was given in 2009, and this field of science has developed quickly since then. Read "Criticisms & updates" below for more details.) Drug-resistant bacteria kills, even in top hospitals. But now tough infections like...
TED-Ed
TED-Ed: How do you know if you have a virus? | Cella Wright
A new virus emerges and spreads like wildfire. In order to contain it, researchers must first collect data about who's been infected. Two main viral testing techniques are critical: one tells you if you have the virus and the other shows...
TED-Ed
TED-Ed: Why is pneumonia so dangerous? | Eve Gaus and Vanessa Ruiz
Every time you breathe, air travels down the trachea, through a series of channels, and then reaches little clusters of air sacs in the lungs. These tiny sacs facilitate a crucial exchange: allowing oxygen from the air we breathe into...
TED-Ed
TED-Ed: Are spotty fruits and vegetables safe to eat? - Elizabeth Brauer
In 2010, 30 billion dollars worth of fruits and vegetables were wasted by American retailers and shoppers, in part because of cosmetic problems and perceived spoilage. But what are these spots, anyway, and are they okay to eat? Elizabeth...
Crash Course
How Do Outbreaks Start? Pathogens and Immunology - Crash Course Outbreak Science
You may not realize it, but your body is like a fortress, designed to defend you from tiny foreign invaders known as pathogens. This seemingly small world is actually super diverse, and sometimes super dangerous too. That’s why in this...
SciShow
What Happens If You Don't Take out a Splinter?
Splinters are gross, but you might want to watch this before grabbing the tweezers.
TED-Ed
TED-Ed: You could have a secret twin (but not the way you think) | Kayla Mandel Sheets
While searching for a kidney donor, Karen Keegan stumbled upon a mystery. After undergoing genetic testing, it turned out that some of her cells had a completely different set of genes from the others. And this second set of genes...
Crash Course
Old & Odd: Archaea, Bacteria & Protists - CrashCourse Biology
Hank veers away from human anatomy to teach us about the (mostly) single-celled organisms that make up two of the three taxonomic domains of life, and one of the four kingdoms: Archaea, Bacteria, and Protists. They are by far the most...
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. --...
Curated Video
Advancements in Recombinant DNA Technology: Revolutionizing Medicine
This video discusses the use of recombinant DNA technology in the production of therapeutic proteins. It explains how genetic engineering allows for the mass production of safe and effective versions of proteins that the human body...
Curated Video
How Vaccines Help Eradicate Diseases: A History and Impact
This video explains how vaccines have played a crucial role in eradicating deadly diseases throughout history, using the example of polio. It highlights the way vaccines work by training the immune system to create antibodies, leading to...
Curated Video
Autoimmune disease
A condition in which the body's immune system attacks it's own healthy cells, tissues or organs. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Antigen
A molecule or fragment of a molecule that triggers an immune response, causing the body to produce specific antibodies against it. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Vaccine
A preparation that can protect against a specific disease. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Curated Video
Terrible TB: Part 2
Introducing the ethical debate surrounding the treatment of tuberculosis patients in the US. Would you enter quarantine voluntarily to prevent widespread infection? Biology - Human Body - Learning Points. Every day 4800 people die from...
Curated Video
Cortisol
An important hormone in the human body, produced by the adrenal glands. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
Immune Defence: Part 2
Antibodies combat some of the strongest foreign invaders that enter your body. What are antibodies and how do they work? Biology - Cells And DNA - Learning Points. Whenever a germ or infection enters our body, white blood cells,...
Curated Video
HIV/AIDS: Immune Evaders
What makes HIV the world's most deadly virus? Its abilities to constantly evolve and to attack the body's immune system lie at the heart of its deadly nature. Biology - Cells And DNA - Learning Points. Human Immunodeficiency Virus (HIV)...
Curated Video
Insulin and Diabetes
Over 400 million people suffer from diabetes globally. What is diabetes, how is it caused, and what role does insulin play in its onset and treatment? Biology - Healthy Living - Learning Points. Insulin is a hormone that controls glucose...
Curated Video
Lymphocyte
A type of white blood cell vital to the immune system. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...