TED Talks
The incredible secrets hidden in your immune system | Beck Brachman
New ReviewYour immune system keeps a record of everything it’s ever fought, from the common cold to chronic disease. Neuroscientist and TED Fellow Beck Brachman explains how, by decoding this archive, scientists may be able to identify the root...
Be Smart
Why Are Blood Types a Thing?
New ReviewAcross life on Earth, blood comes in red, blue, green, purple, even clear. But why? And what makes your blood different from mine? This video will teach you everything you need to know about the strange world of blood—what it does, why...
SciShow
How Space Awakens Sleeping Viruses
Space travel is infamous for the effects it can have on the human body. But some of those effects are a little more unusual than others. For example, if you ever had mono or chicken pox, it can reawaken those viruses that have been...
SciShow
Why We Need Camels To Treat Cancer
In the fight against diseases like cancers and blood disorders, sometimes we need to turn to unexpected allies. And in this case, one of those allies was a tiny little nanobody hiding inside of... camels. Hosted by: Savannah Geary...
SciShow
For mRNA Vaccines, COVID Was Just the Beginning
mRNA vaccines stopped the COVID-19 pandemic in its tracks. Now, they're poised to help us against the flu, rabies, cancer, and more. Hosted by: Niba @NotesbyNiba (she/her)
SciShow
Why They Can't Make an HIV Vaccine (They're Trying!)
A lot of very smart people have been working for a very long time on vaccines for HIV/AIDS, and they've come up empty. Thanks to broadly neutralizing antibodies (bnAbs) and mRNA vaccine technology, that might be changing. Here's why we...
SciShow
Mad Cow Disease Mostly Infects Teenagers
When variant Creutzfeldt-Jakob disease, AKA mad cow disease, first emerged, researchers noticed a weird trend in exactly who got sick. Mot patients were diagnosed in their twenties, which would mean they got infected in their teens. Over...
SciShow
Why We've Only Cured HIV Seven Times
As of 2024, exactly seven people have been cured of HIV, most recently the "next Berlin patient." Why aren't we sharing this cure with everyone living with HIV? It's complicated. Hosted by: Reid Reimers (he/him)
SciShow
Some Women Are Ending Their Periods. Is That Safe?
Because periods are inconvenient, many women are choosing to end them entirely with hormonal birth control. This episode explores the research on its safety. Hosted by: Hank Green (he/him)
SciShow
Poop Treats Parkinson’s (and Allergies, and MS, and Liver Disease, and...)
Fecal transplants are often associated with treating intestinal issues, but they have uses far beyond that. In this List Show, we explore five surprising conditions they improve. Hosted by: Hank Green (he/him)
SciShow
The Wild Science Behind Extended Release Medications
Inventing cutting edge medicines to cure devastating diseases is one thing. Getting them into patients is another. Today we talk about a scientist who figured out how to do just that. Hosted by: Hank Green (he/him)
Crash Course
Animal Defense Systems: How Skin, Snot, and Cells Keep Us Healthy: Crash Course Biology #45
The world is full of microbes and viruses that can get us sick, but we’ve got an Avengers-style defense system ready to take them on. In this episode of Crash Course Biology, we’ll learn about an animal’s immune system, from their skin...
Crash Course
Viruses & Vaccines: How Do Vaccines Work?: Crash Course Biology 39
From the flu to COVID-19, viruses are a major threat in our everyday lives. In today’s episode of Crash Course Biology, we’ll learn why viruses are like genes in a box, and how they invade and spread between cells. We’ll also discover...
Crash Course
Transcription: How mRNA Helped Save Lives: Crash Course Biology #34
You’ve probably heard of mRNA, thanks to the COVID-19 vaccine. But what is mRNA exactly? In this episode of Crash Course Biology, we learn about the role of messenger RNA in living things and how it decodes our DNA instruction manual...
Be Smart
%$?# Allergies!
Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it's also about sneezing, watery red eyes, and a runny nose, thanks to allergies. In this week's video, you'll learn why we get allergies,...
Amoeba Sisters
Lymphatic System
Explore the lymphatic system with the Amoeba Sisters! This introduction talks about lymph, the general way lymph travels in the lymphatic system, primary and secondary lymphoid organs and tissues, general functions of the lymphatic...
SciShow
We're Probably Going to Cure MS
You've probably heard of multiple sclerosis, especially if you're a fan of The West Wing. But can we ever cure MS? Yes. But also, no. But also, probably? It's complicated.
SciShow
This Blood Test Predicts Your Future
There's a lot of interest in knowing your future when you're a kid. But one thing you can know with basically 100% certainty isn't one you'd expect - your risk of developing type one diabetes. So if one simple blood test can tell you if...
Amoeba Sisters
Human Body Systems Overview (Updated 2024)
Explore 11 human body systems with the Amoeba Sisters in this updated video (2024). This video focuses on general functions for the following systems (and also provides a few structure examples): Circulatory, Digestive, Endocrine,...
SciShow
A Vaccine That Makes Your Immune System ... Forget?
Vaccines for covid or the flu teach your immune system to remember a threat so that it responds when that threat shows up. Some researchers want to delete immune memories instead, because those aberrant memories are the cause of...
SciShow
Can We Make A Vaccine Against Smoking?
We've all heard of a flu shot or a COVID vaccine, but there's a whole bunch of other health issues that researchers think we can use vaccines to prevent. From high cholesterol to substance abuse, researchers want our immune systems to...
SciShow
What Makes This Plant Hair So Deadly?
You may be familiar with plants that have hair, like fuzzy peaches. But these plant take their 'dos to the next level, because their hairs are deadly.
SciShow
The Hallucinogenic Fungi That May Treat Alzheimer’s
If you've ever heard of ergot fungi, you've likely heard of the nasty side effects of eating them, including convulsions and hallucinations. But like many a toxic substance, scientists have figured out ways to use ergot for good....
SciShow
Should You Get Multiple Shots in the Same Arm?
When you get two doses of a vaccine, you might assume that it doesn't matter which arm gets the shots. But some evidence suggests that it does.