We all know that brushing our teeth is important but now with this experiment you can actually SEE how brushing keeps your teeth clean!

There’s nothing fun about getting a cavity! It can feel like there’s not much you can do to prevent them, but researchers are working on several ways to tackle their main cause so we can create a cavity-free world!

We’re all super familiar with the feeling we get when we smell rotten food or see gross bodily fluids. But this visceral emotion does a lot more than that, and it’s important understand to how the darker side of disgust can influence us.

What does it look like when someone in Sweden brushes their teeth or when someone in Rwanda makes their bed? Anna Rosling Rönnlund wants all of us to find out, so she sent photographers to 264 homes in 50 countries (and counting!) to...

This video is brought to you by the Child and Teen Checkups program of the Minnesota Department of Health.

Bristlebots are tiny little robots with no "brain." They are powered by vibrations and move around randomly. Even if there is no brain, can you still influence how they move by changing their design? Find out in this fun robotics project!

What Kind of Toothbrush Should You Use?

Howcast - Get luscious, pillowy, kissable lips—with or without injections.

Howcast - Learn how to brush teeth correctly from Shane Methal DDS in this Howcast dental care video.

Howcast - Learn how to clean a baby's teeth from parenting coach Tammy Gold in this Howcast baby care video.

Howcast - Check out part 13 and meet the new crew of the Normandy SR2 with Jane Shepard in this walkthrough for Bioware's new release, Mass Effect 3.

Howcast - To make a piece of furniture shine like it's brand new, start by stripping off all of the old paint to create a clean surface to refinish.

Howcast - If your feline friend has breath that could kill a woolly mammoth, this guide will help clean your little saber tooth's fangs without much fuss.

Howcast - Those brown and orange spots don't have to send you running to the flooring or department store anymore. Remove that iron oxide at home with these steps.

Howcast - Cooking splatters, food droplets, and even dirty shoes can leave oily stains on your garments and carpet. Remove them with common household products.

Howcast - Learn how to take care of your puppy's teeth from dog trainer Robert Haussmann of Dogboy, Inc. in this Howcast video.

Howcast - Show off the natural beauty of your diamond ring by periodically cleaning it at home with a few common household products.

Howcast - Get rid of hard water deposits by using organic, safe household cleaners instead of using harsh chemicals.

Howcast -Winter boots suffer a lot of wear and tear over the season, but care and effort will help them look better and last longer.

Howcast -Get the strong bond of super glue out of your clothes by using these simple techniques.

Howcast -Learn how to clean a gun from Police Officer Keith Charley in this Howcast gun video.

Howcast - There's two pieces of advice you can never go wrong by following—floss and brush at least twice a day to keep your pearly whites bright and healthy.

There's nothing that will brighten up your bathroom faster than recaulking an old, mildewed bathtub or shower.

Having less-than-brilliant teeth doesn't have to mean a trip to the dentist or a whitening kit. Try this all-natural remedy instead.