We all have "happy habits." We repeat behaviors that triggered our happy chemicals in the past, even without conscious intent. Habits have power because brain chemicals pave neural pathways. Our brain expects to feel good by doing things that felt good before. Unfortunately, good things have side effects. We can end up feeling bad despite our efforts to feel good. Fortunately, we can rewire ourselves to replace an unwanted habit with a healthier habit. Here is a simple plan for choosing a new habit and repeating it until it feels natural. You can stimulate more happy chemicals with fewer side effects. It's not easy, but you can do it in 45 days it you commit.