Your Immune System Protects You Against the Constant Danger of Invasion by Diseases
There are roughly 40 trillion cells in our bodies and that means we are all rich ecosystems and that diseases and bacteria are doing their best to take advantage of our resources, our space, and our warmth.
Watch the video above to get a detailed description of how it all goes down in our bodies. It’s truly fascinating!
Be sure to follow the Kurzgesagt YouTube page to see more of their informative videos.