The 5 Fabulous Food Groups

Our bodies need lots of energy to keep us going throughout the day. And do you know where we get that energy? That’s right…from the food we eat! And all kinds of different people enjoy different kinds of food. But whether your favorite meal includes noodles or nectarines, tortillas or tofu, most types of food […]

The Milky Way’s Black Hole Burped 3.5 Million Years Ago

This episode is sponsored by Squarespace. From websites and online stores to marketing tools and analytics, Squarespace is the all-in-one platform to build a beautiful online presence and run your business. [♪ INTRO] Just like most major galaxies, our Milky Way’s core is home to a supermassive black hole. And just like in most major […]

Why Nutrition Studies Keep Contradicting Each Other

[♪ INTRO ] It seems like it’s practically impossible to get a straight answer on whether a given food or supplement is good for you. First they say red wine is good for you. Then there’s a headline announcing that it doesn’t do anything, and wait, isn’t alcohol supposed to cause cancer? If you wanted […]

Paleo Got It Wrong: We’ve Loved Carbs for Over 100,000 Years | SciShow News

Thanks to Brilliant for sponsoring this whole week of SciShow! You can learn more at [ ♪INTRO ] We used to think that carbs were a recent addition to the human diet. I mean, that’s why the so-called “Paleo diet” says you shouldn’t eat wheat or potatoes. But perhaps unsurprisingly, the fad diet trend […]

Why Can’t You Digest Grass?

Cows really do have it made. I mean, basically everywhere they look, there’s grass for them to eat! We humans don’t have it as easy. You could try eating grass, but it wouldn’t do much for you. So what’s the difference? If cows can digest grass, why can’t we? Well, cows have the tools to […]

6 Supplements That Might Actually Help You

♪Intro♪ Supplements are super popular. One recent survey estimates that more than half of Americans use them, and we spend billions of dollars on them each year. The truth is, though, most people don’t need any supplements, unless they’re deficient in a vitamin or mineral. And even if they are, they should probably switch up […]

Why Venus Is THE WORST

Thanks for CuriosityStream for supporting this episode! Go to to learn more. [ intro ] Venus is sometimes referred to as Earth’s sister planet. It’s close by, and pretty similar in size. It’s thought to have been fairly Earth-like early in its history. Once upon a time, it may even have had lots of […]

The Good Behavior Game

[ intro ] If you’ve ever been either a student or a teacher — and that covers most of us — you’ve probably been in a classroom that was out of control. Education researchers have come up with a lot of ways to handle rowdy classes and misbehaving kids. Many of those methods are published […]

Why Are Some People Left-Handed?

[MUSIC] [MUSIC] Evolution spent nearly 400 million years crafting these works of art, two of the most important pieces of the human evolutionary puzzle. Yet 99% of us end up being good with one hand and not the other, for common tasks like writing, high-fiving, and the all-important one-handed texting. Even life itself seems to […]

Move Over, Mars: We Could Farm on Asteroids!

SciShow is supported by Blue Apron. Right now, Blue Apron is offering $50 off two boxes of meals to the first 50 SciShow Space viewers to sign up. Get fresh ingredients and chef-designed recipes delivered right to your door. Just click on the link in the description to get $50 off your first two Blue […]