In this chapter of John Medina’s book The Brain Rules, he speaks about survival. Survival is something that all species must go through, we were able the adapt due to evolution. Since we continue to evolve the way we think and the way we live. He speaks about the ways our brain adapts, to our changing environment. This helps us survive in the sense that you are able to change along with your surroundings. Such as beliefs on certain aspects of the world, this is your mind changing how you think to adapt to the life you are living. This chapter was enlightening since I really never thought about survival as a sense of evolution.