YouTube is a free to use service and a can be a great space for teens to discover things they like. For many young people, YouTube is used to watch music videos, comedy shows, how to guides, recipes, hacks and more.

YouTube is a free video sharing website that makes it easy to watch online videos. You can even create and upload your own videos to share with others. Originally created in 2005, YouTube is now one of the most popular sites on the Web, with visitors watching around 6 billion hours of video every month.

There are at least 800 million videos on YouTube and quite possibly many more than this. It's actually hard to quantify exactly how much video is on YouTube in total, since more content is being uploaded constantly.

What's a healthy amount of screen time for adults? Experts say adults should limit screen time outside of work to less than two hours per day. Any time beyond that which you would typically spend on screens should instead be spent participating in physical activity.