Imagine being equipped with a brain switch that has an 'on' and 'off' mode, which allows you to be the best you possible. How would your life be if you had this brain switch? You would never again skip a gym session or drink another glass of beer or leave that all-important assignment for work until later. What you don't realize is that you do have the strength to create your own brain switch. The one that tells you what to eat, what not to eat, how...