With the recent passing of Lubbock restaurant owner Diep Truong from the flu, many people are curious as to how bad the virus can really be. It obviously can be deadly. But how does it attack our body? This video explains it really well.

Skunk Bear is a science show from NPR. They post really cool videos all the time about the world we live in. From how to make homemade lava to frozen lakes that make sounds like Star Wars blasters, Skunk Bear has some really informative stuff.

This recent video is a great illustration of how viruses like the flu attack and take over our bodies. I know I've always wondered how it works inside. Now I know, and you do, too.