Like HowStuffWorks on Facebook!

Right Now in BrainStuff

 What Is White Noise?

Christian defines what white noise actually is and how it's used to mask other annoying sounds. See more »

Do Supplemental Vitamins Actually Work?

 Do Supplemental Vitamins Actually Work?

A vitamin a day keeps you healthy to play. Or does it? See more »

BrainStuff: Is It Possible To Erase Your Memories?

 BrainStuff: Is It Possible To Erase Your Memories?

Science suggests it's possible to erase specific memories. But even if we can, should we? See more »

How Does Night Vision Work?

 How Does Night Vision Work?

For the vast majority of international travelers, a passport is a necessity. But why? See more »

Why Do I Need A Passport To Travel?

 Why Do I Need A Passport To Travel?

For the vast majority of international travelers, a passport is a necessity. But why? See more »

BrainStuff: Here's Why Helicopter Blades Can Look Strange On Video

 BrainStuff: Here's Why Helicopter Blades Can Look Strange On Video

Helicopter blades and other fast spinning objects often produce strange effects on camera. Lauren explains why. See more »

How Do Bed Bugs Work?

 How Do Bed Bugs Work?

These insects live in your bedroom, drink your blood and stain your sheets. How do you get rid of them? See more »

What If The Moon Disappeared?

 What If The Moon Disappeared?

Without the moon, how would Earth's environment be affected? Would we survive? See more »

What is "Ranch" Flavor?

 What is "Ranch" Flavor?

A plumber in Alaska invented a bizarre condiment that launched a multimillion dollar industry, and today ranch is the most popular salad dressing in the US. But what exactly is this stuff? See more »

What Is Fracking?

 What Is Fracking?

You’ve heard of fracking, and you’re pretty sure lots of people don’t like it, but do you know how it actually works? See more »

The Science of Glow Sticks

 The Science of Glow Sticks

What do fireflies, TVs, neon signs, and glowsticks have in common? See more »

Does Your Name Determine Your Future?

 Does Your Name Determine Your Future?

How much does your name actually matter? Are some names going to make you rich, while others make you poor? See more »

What Happens When I Have A Hangover?

 What Happens When I Have A Hangover?

If you've ever had a few too many beers at a party, then you've probably encountered the symptoms of a hangover -- the pulsing headache, dry mouth, nausea and more. But what's actually happening to you? And what is it about alcohol that can turn a wonderful Saturday night into an agonizing Sunday morning? See more »

How Do Laugh Tracks Work?

 How Do Laugh Tracks Work?

Sitcoms use laugh tracks all the time. But where do they come from? See more »

Why Do You Hate the Sound of Your Own Voice?

 Why Do You Hate the Sound of Your Own Voice?

The recorded sound of your voice usually makes you cringe because of two ways vibrations reach your ear. See more »

How Does Air Force One Work?

 How Does Air Force One Work?

When the President travels the friendly skies, he does it in style. See more »

How Does Marijuana Affect Your Memory?

 How Does Marijuana Affect Your Memory?

People who smoke pot have a reputation for being forgetful or absentminded. But what's the real science behind this? See more »

How Do We Know What Dinosaurs Looked Like?

 How Do We Know What Dinosaurs Looked Like?

Can we really reconstruct a dinosaur’s appearance from a bunch of million-year-old fossils? How? See more »

Does Eating Before Bed Give You Nightmares?

 Does Eating Before Bed Give You Nightmares?

Why do some foods affect our dreams? See more »

Why Do Men Have Nipples?

 Why Do Men Have Nipples?

Men don’t usually lactate – but they can! Christian explores how breast tissue develops in human embryos of both sexes, and explains why mice are more advanced, evolution-wise. See more »