If you've never had a migraine, you might think it's just a really bad headache. But if you've ever had them, or you know someone who does, you know that they're much worse -- and much more complicated -- than that. Hank explains the...

Animals use all kinds of tricks and adaptations to keep themselves safe from predators, but armadillos stand out for a really special reason: they have their own, built-in suit of armor!

With so many claims about the moon’s influence over everything from menstrual cycles to rainfall, SciShow is here to set the record straight with these 8 truths and myths about our moon.

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What's the best sleeping position? Well, with all the pseudoscience to consider, it might just depend on who you are. *The graphic shows the stomach on the wrong side of the body. It should be pictured on the left side of the body, not...

You might feel overwhelmed, and have no idea what you're doing when you first have a baby, but evolution has prepared you to take care of your kids.

We’ve compiled some of those frequent asks into one place, here, so hopefully, if you’ve ever wondered these curious questions, you can get a whole bunch of answers. Welcome to this episode of SciShow Compilation: FAQ!

If you celebrate American Thanksgiving, odds are you're full of food and pretty sleepy right about now. While you drift off for a post-feast nap, enjoy this compilation of episodes covering all kinds of different sleepy, science-y topics!

Stress and anxiety are complex, and the brain chemistry involved in those experiences are no exception. Here we explore the chemicals responsible for your brain’s response to stress.

You might think you need a brain to be able to sleep, but organisms with super simple neural networks can still "sleep" sort of like we do. So, if these organisms can sleep too, then what is sleep anyway?

For most people, insomnia won't kill you. But in one very rare, very specific case, not only is it deadly, it's lurking in your genes.

If you know someone who can’t start their morning without 3 cups of coffee, don’t assume they frequently stay out late partying—it’s probably genetics.

Around 1917, an unknown illness dubbed "sleeping sickness" caused people to suffer severe sleepiness and delirium. Some even became paralyzed for decades until a temporary cure was discovered in the 1960s. The story of this illness is...

Optogenetics may allow us to use light like a remote control for our brains, and treat diseases like retinitis pigmentosa.

We’ve learned a lot about how the human brain works, but there are still new discoveries and mysteries each year, and 2019 was no exception. We learned pretty big things, from internal compasses, to mysterious sniffers, to brain-washing...

What happens when you don't sleep? And why do we need to do it anyways? Hank explains the science of sleep: the cause, the benefits, and who holds the record for going without it!

A leather mask that clamps the mouth shut. A cannonball sewn into a soldier's uniform. A machine that delivers sudden electrical pulses. These were all treatments for a problem that has haunted humanity for millennia: snoring. It might...

Being able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that's hurtling towards us. And we owe all these abilities to an interconnected system of timekeepers in our brains. But...

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. As a black woman from a tough part of the Bronx who grew up to attain all the markers of academic prestige, Dena...

Vivid dreams have gotten pretty common during the Covid-19 pandemic and there’s a good psychological reason for that.

NASA is really good at going to space, amongst other things, but did you know that part of their mission is to work also for the public good!? It's part of NASA's doctrine that they must release the patents on the stuff they work on,...

Jessi had the weirdest dream last night and wants to share with you why our brains make dreams.

When you feel like you can get so much done, and nobody can stop you, you might be experiencing what psychologists call "flow." But what’s actually happening to your brain when you're in that state?

Thanks to science and technology, our dream to go to Mars has almost come true! But are our brains ready for it yet?

The Arctic Ground Squirrel hibernates by burrowing under the permafrost and slipping into a state of suspended animation. The female black bear can give birth while she hibernates. The fat-tailed dwarf lemur prepares to hibernate by...