Believe it or not but currently right now as I am sitting here typing this blog post physics has an effect on me. That effect is the normal force. As I am sitting in this chair I am applying a force to the chair but then in return the chair is applying the same force back up to me. The chair is then doing the same thing to the floor which is applying a normal force but then applying the same normal force back up to the chair. That is how physics relates to me sitting here typing this blog post. Hope you found this interesting!