I remember when I was little, I saw a movie about how, in order to treat patients or search for something, several people were shrank down with the use of technology and put inside a human body. Human organs, and even bacteria, became gigantic. The visual effects of the movie were really striking back then. In the past, these were a part of a science fiction movie, and now it's about to become reality. Scientists are currently studying super microscopic robots to be put into human bodies for all kinds of treatment, which sounds so unimaginable. However, for robots to fight the war for protecting life inside the human body, looks to be happening soon.