In the animal kingdom, sleeping can be dangerous. Lying completely motionless and unconscious for hours at a time is just asking for trouble. There are, however, some sleepy risk-takers who spend almost all of their days snoozing.

Dreaming is one of the weirdest things we do & in this SciShow infusion Hank talks about how science is helping us understand why we dream, what our brains are up to when they're doing it, and why dreaming may be critically important to...

Hank tells us some of the surprising things that could be causing or contributing to the obesity epidemic.

Despite some bold claims, most supplements can’t really "boost" your metabolism, and the actual changes we can make to it are pretty limited.

Tweeting may not decrease your stress, but the twitter of some birds just might. And can we make people forget their memories?

Turns out, two atomic clocks are indeed better than one. And what role does sleep play in memory suppression?

From menstrual cycles to rainfall, there are lots of claims about the moon's influence. In today's episode, Hank is here to set the record straight with 8 myths & facts about our moon.

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...

Have you ever found yourself seeing images right before falling asleep? You might be experiencing hypnagogia.

Bats sleep upside down, so how come they don’t fall? Turns out that they’ve got some unusual legs.

Humans (and our pets) frequently instinctively stretch as soon as we wake up. But why? What is happening in our bodies when we stretch and yawn to wake ourselves up?

Learn why you may experience jumping in your sleep, and how you can prevent it!

Neurotechnology, or devices that let you track your own brain activity, could help you deeply understand your health. But without privacy protections, your innermost thoughts, emotions and desires could be at risk of exploitation, says...

Neurodiversity and innovation often go hand in hand, but does that mean visionary entrepreneurs get a free pass to say and do anything they want? Bonobos founder and mental health advocate Andy Dunn shares his experience navigating...

The U.S. government found child labor violations involving over 3,800 minors in 2022. At the same time, some states say there is too much regulation of child labor. Katherine Walts, director of the Center for the Human Rights of Children...

Millions of Americans became pet owners during the pandemic. Today, around 70 percent of U.S. households now have pets, but many owners struggle to cover the costs of veterinary care. Special correspondent Cat Wise reports from Tennessee.

Jessi and Squeaks decide to answer some interesting questions from viewers like you, to teach you about sand, butterflies, and computers!

Dreams can be scary, mystifying, and sometimes unnatural feeling experiences, but there's plenty about them that are perfectly ordinary. Here's a compilation of some things we know about dreams.

Refugees arriving in upstate New York in recent years have increasingly come from active conflict zones, including Syria and Iraq -- many fleeing with injuries of war and deep emotional scars. As the refugee populations in places like...

For generations combat jobs in the U.S. military were blocked to women, but not anymore. The question now is can women meet the same rigorous standards as the men in order to qualify for frontline jobs? William Brangham has the second...

You all had some questions that you really wanted answers to over the years, so we’ve compiled a bunch of the most popular videos answering those questions together in one place!

If you've ever wondered why you crave certain foods or what your appendix actually does, there's something in this collection for you!

What's the best way to make a good point? Organizational psychologist Niro Sivanathan offers a fascinating lesson on the "dilution effect," a cognitive quirk that weakens our strongest cases -- and reveals why brevity is the true soul of...

Even the parts of our brains that don't control physical movement show a lot of rhythm, and that might be integral to how our brains...