Habits aren’t just small behaviours like chewing your fingernails or cracking your knuckles, they are chunks of often complex actions grouped into one big process, and they make up an enormous amount of your life. In this module we explain what a habit is and how it forms in the brain before showing you exactly how these can make or break your nutritional approach. Finally, we give practical steps, not just to break habits, but to change them for the better.