SciShow

Internet fandoms can get… sort of intense, but is an unwavering devotion to your Hogwarts house an unhealthy fixation or a way to reach out to others and engage in the world around you? Hosted by: Brit Garner ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following

One of the most fundamental ideas in physics is that the disorder of the universe, also known as entropy, is constantly increasing. But, life’s inherent chemical makeup has been hacking the disorder of the universe for billions of years! SciShow is supported by Brilliant.org. Go to https://Brilliant.org/SciShow to get 20% off of an annual Premium

“Crazy cat lady” stereotypes or not, there could be some actual psychological risks from hanging around so many kitties… if just one of them is harboring the parasite Toxoplasma gondii. Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer,

Thanks to Squarespace for sponsoring this video. Go to Squarespace.com for a free trial and when you’re ready to launch, go to http://squarespace.com/scishow and add code “SCISHOW” at checkout to save 10% off your first purchase of a website or domain. You probably think the appendix is a useless organ left over from our evolutionary

Go to http://curiositystream.com/scishowpsych to start streaming Curious Minds: Brain Health. Use code “scishowpsych” to sign up, just $14.99 for the whole YEAR. Our immune systems aren’t just critical to our physical health. It turns out they may play a big role in our mental health, as well. And learning more about how these two aspects

Looking at a map, you would never know that North America once almost ripped itself in half. But 1.1 billion years ago, it tried to – and had it succeeded, there would now be an ocean where Lake Superior is! Go to http://Brilliant.org/SciShow to try their Knowledge and Uncertainty course. The first 200 subscribers get

You might have faked being sick to avoid doing something unpleasant. However, for people with the factitious disorder, faking illness isn’t quite so straightforward. Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters—Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles

Radiation sickness been portrayed in movies and television for more than 50 years. And those portrayals vary a lot. But if there’s one thing pretty much all these portrayals have in common, it’s that they get radiation sickness wrong—at least somewhat. Hosted by: Michael Aranda SciShow has a spinoff podcast! It’s called SciShow Tangents. Check

It’s easy to assume that people who join cults have something wrong with them, but usually the people who join cults are just like the rest of us. So, how does it happen? Hosted by: Brit Garner ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon

Over its lifetime, the Earth has seen plenty of climate change. About 50 million years ago the planet experienced extreme cooling, and all from a little fern. We’ve been nominated for a Webby! Please vote: http://tinyurl.com/sswebby Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to

We are constantly recognizing faces countless times a day, but how do our brains distinguish those faces so easily? Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters: azarus G, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott

It can be a wonderful feeling to give your tired eyes a good rub. And rubbing your eyes can help keep them moist, but it turns out it also can affect your heart rate. Hosted by: Michael Aranda SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at http://www.scishowtangents.org ———- Support SciShow

Kings, scientists, and musicians alike have all been known to stutter. It can make speaking in front of crowds even more nerve-wracking, but is anxiety the root cause? Spoiler: probably not. Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters: Kevin

Do you suffer from canker sores? These little white balls of blinding pain can be annoying, but there is hope. Hosted by: Michael Aranda ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters—we couldn’t make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron,

The famous British historian Lord Acton once said, “Power tends to corrupt, and absolute power corrupts absolutely.” And science tends to agree, but how we can prevent power from going to our heads? Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow SciShow has a spinoff podcast! It’s called SciShow

Big or small, most creatures end up on something else’s dinner menu. But the velvet ant combines a ton of defenses into one very unappetizing package.  SciShow is supported by Brilliant.org. Go to https://brilliant.org/SciShow to get 20% off of an annual Premium subscription. Hosted by: Michael Aranda SciShow has a spinoff podcast! It’s called SciShow

Mirror neurons are a very cool part of our brains but some people are taking it way further by making claims that they are responsible for telepathy and ESP. It goes without saying that this isn’t true, but what exactly do mirror neurons really do? Hosted by: Hank Green ———- Support SciShow by becoming a

It turns out there’s a scientific explanation behind the saying, “It’s not the heat, it’s the humidity!” Learn why a hot and humid day feels so dismal and some tips to avoid the really sweaty, gross days on today’s Quick Question! Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow

It’s said that the quickest way to kill a joke is to explain it, but scientists are still interested in finding out just what tickles our brains and makes us find something funny. Hosted by: Brit Garner ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon

This episode is brought to you by the Music for Scientists album! Stream the album on major music services here: https://streamlink.to/music-for-scientists. Check out “Aristarchus in the Rain” here: https://youtu.be/kuD61YDmv6U Have you ever wondered why 75% humidity in the summer feels sticky, but 75% humidity in the winter feels super dry? Turns out, the common definition

Sometimes our behavior and our beliefs just… don’t match. And a lot of times this mismatch can lead to stress. What’s happening in our brains when we’re inconsistent? Can we learn anything from this discomfort? Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow SciShow has a spinoff podcast! It’s

What’s salty and cold and cool as heck? Brinicles, a rarely seen undersea phenomenon the combines ice and saltwater to become every sea star’s worst nightmare! Actually, they’re not that scary, just awesome. Hank explains within. Like SciShow? Want to get cool things to put on your walls, cover your torso and hold your liquids?

The aggressive urges you might have when you see adorable things are probably related to the way you handle strong emotions. For 10% off Squarespace: http://squarespace.com/scishowpsych Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters—Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick

Some people can eat raw jalapeños like they’re apples. Why do some people have a high tolerance for spicy food while others can’t stand it? Hosted by:Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters—we couldn’t make SciShow without them! Shout out to

You might have heard about repressed memories on TV, but those memories aren’t always what they seem. *Content warning: description of school shooting Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith,

What’s the deal with that sharp pain in your side when you’re trying to win that marathon? SciShow has the answers! Hosted by: Hank Green ———- Dooblydoo thanks go to the following Patreon supporters — we couldn’t make SciShow without them! Shout out to Justin Ove, Chris Peters, Philippe von Bergen, Fatima Iqbal, John Murrin,

There are a multitude of books and motivational speakers that insist that anyone can think their way to happiness, but that advice really isn’t a one-size-fits-all solution. Hosted by: Hank Green We make science kits now! Go to http://UniverseUnboxed.com to learn more, order one online, or find them in a store near you. ———- Support

Join Hank Green as he explains why blacklights make some things glow! Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters — we couldn’t make SciShow without them! Shout out to Justin Ove, Accalia Elementia, Kathy & Tim Philip, Kevin Bealer,

We reference the DSM pretty frequently on SciShow Psych, and for good reason: it’s considered the gold standard for professional mental health diagnosis in the United States, but it was an interesting journey to get there. Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to

There are some places on our planet that seem pretty ordinary, they’re just… weirdly small. Like, a miniature desert, or a teensy volcano. But when you look a little closer, there’s a lot more to these tiny geological misfits than meets the eye. Hosted by: Hank Green SciShow has a spinoff podcast! It’s called SciShow

Patients in comas might look like they’re sleeping, but there are pretty fascinating things happening inside of their heads. Hosted by: Brit Garner ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters: Jerry Perez, Lazarus G, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander

Why are tattoos permanent? How do you deliver the ink? And how do you remove a tattoo if you no longer want it? Hosted by: Michael Aranda ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters—we couldn’t make SciShow without them! Shout out to Bella

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. Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum

Our bones are multi-functional body builders, but perhaps their most mysterious function is the production of blood. Scientists now think they have a pretty good idea why this is where our blood gets made. Go to http://Brilliant.org/SciShow to try their Physics of the Everyday course. Sign up now and get 20% off an annual Premium

It’s pretty common to procrastinate before a big exam or an important presentation, and those self-handicapping has to do with protecting yourself from negative feelings. Hosted by: Hank Green ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, D.A. Noe, سلطان