Nicotine is so addictive that most people who try to quit are not successful at first. So to up your chances of success, here's the data behind which methods are most effective, plus some cool ways you might be able to quit in the...

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...

It's no secret that some people are bad at their jobs. But when those people are scientists, and their jobs are to publish papers about their work, well... Sometimes, bad papers hit the presses. These are a few stories about...

TED Fellow and renewable energy expert Norah Magero envisions an Africa that pioneers its own technological future, shifting the narrative from dependence and consumption to self-reliance and innovation. She shares how she developed...

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.<br/>

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...

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...

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.

On her way to winning the 2023 Nobel Prize for her pioneering work on mRNA vaccines, Katalin Karikó lived a life made for the big screen. <br/>

Here we are, just a year after the first news of the coronavirus we now call SARS-CoV-2 and the global pandemic known as COVID-19… and scientists have already developed more than one safe & effective vaccine. How did they do that so...

I Can't Believe We're Making Another COVID Video

Since the start of the coronavirus COVID-19 pandemic, the term “herd immunity” has been all over the news. But what does it really mean? One thing most people don’t realize about vaccines is that they aren’t just to protect the person...

It may be possible to create a needle so small it can inject a vaccine into a single cell. But it's not the product of a medical device company. It's part of something we often think of as making us sick.

You might know that chickenpox and shingles are both caused by the same virus, varicella zoster. Here's why the symptoms, and even the vaccines, are different the second time around.

After decades of improvement, the number of malaria deaths is on the rise again. So scientists are experimenting with a new kind of mosquito control, and it's not an insecticide.

Right now, experts say a vaccine for COVID-19 is a year or more away. But as far away as it sounds, it’s only within the realm of possibility because scientists are speeding up the vaccine development process in surprising ways.

Last week, the World Health Organization announced that a malaria vaccine has finally made it through all the regulatory hurdles and is being distributed in the country of Malawi. Learn how it works and why it’s taken so long to develop...

Luckily, we live in a time where we don't have to worry about smallpox anymore. It's a horrible disease, but through smart vaccination techniques, we took it from killing millions worldwide, to being eradicated from the planet!

The FDA recently approved two mRNA vaccines for COVID-19, but it was a challenge to make this type of vaccine work. And it took decades of research to get us to the point where scientists could make those vaccines as quickly as they did.

The HIV & AIDS epidemic claimed countless lives in the 80s and 90s— and while it's still a devastating diagnosis, medical technology has made significant advancements in treating HIV. In the second video of our two-part series on HIV and...

Wheezy Waiter announces the SciShow nominees for "Worst Science in a Film," & Hank talks about the bird flu and shares two sounds that had never been heard by human ears until very recently.

Fewer children in the United States are getting vaccinated. That’s bad news for those kids, and also for public health in general. Often, the response is to argue and debate and get angry at people who are we see as making terrible,...

You might be wondering what we know about Sputnik V, the world’s first vaccine for widespread use against COVID-19. Well, so is everyone. Many experts are skeptical as to whether the vaccine actually works, because it’s been tested in a...

If you lost your arm almost immediately after being vaccinated, would you still be vaccinated?