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

In your brain the right side controls the left half of your body and vice versa. We still aren't sure why this is, but some scientists have come up with a pretty bizarre explanation: that some ancient vertebrate ancestor was born with...

Bones, you probably have them and they're for more than holding your body upright.

People ask Google everything under the sun. One of the most commonly searched questions in the world is “How much water should I drink a day?” SciShow has the answer!

Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated.

Allergies can already be a bummer, but did you know they can eventually stop you from enjoying your favorite foods?

What’s up with ticklishness? And are other animals ticklish, too? Quick Questions has the answers!

Some days you look in the mirror and find a long dark hair where it didn't use to be. Maybe you're going through puberty, pregnancy, or menopause. Maybe you're not. But either way, that hair didn't appear out of nowhere. It just went...

When it comes to sex things can be complicated, but for the three species we are looking at today, sex is really hard.

This week's SciShow news has Hank bringing us a primer on the science behind various illegal and illicit ways in which athletes "improve" their bodies, proof of general relativity that we can actually see, and a new way to measure how...

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

You may have had an ultrasound before, and wondered what that gel does. Well, that weird alien goop has a purpose, and it has to do with being like our weird human skin.

Almost everyone has a scar that tells a story, but have you ever wondered why exactly scars form in the first place?

We all know turtles live an amazingly long time, but what's their secret? And can we apply it to humans?

What killed George Washington? Turns out it was probably related to the bloodletting and other 18th-century medicine his doctors applied.

Is there actually a cure for cancer? A universal cure would be a truly historic achievement in medicine, and it seems that scientists may have found it... by accident. Watch this new episode of SciShow and find out more! Hosted by: Hank...

We usually think of 'hacking' as a bad thing, but scientists are working on ways to hack the brain that will greatly benefit people with prosthetics, and maybe someday people with paralysis.

Does your heart rate have an upper limit and could you ever reach it?

Researchers believe you can get reinfected with COVID-19, but we're not quite sure if that's a bad thing yet.

Hank talks about chimeras, and why Venus the cat probably isn't one - but your mom might be!

Currently, there is no cure for viral gastroenteritis—more commonly known as the stomach flu. However new research into cytokines has the potential to change that! Join Hank for a new episode of SciShow where we'll discuss if a stomach...

You might think that you’re pretty familiar with your body, but it turns out that our bodies still have some surprises for us!

You may have heard the oddly specific advice that pregnant people shouldn't eat soft cheeses, but there's a very good reason for that, and it applies to more than just dairy products.

Scientists and engineers are taking folding into the future!