10 Habits of Healthy People A habit is formed when you do the same thing repeatedly, day after day. Neural pathways in your brain change in response to these new habits. It can be difficult to break a habit, and challenging to begin a new one. If you wake up each morning and decide to exercise, at first it can be a struggle, something additional you need to get done in your day. After some time though, it’s part of your day, part of your routine, a habit you don’t have to put extra thought into. Studies show that it takes about 21 days, or more, to form a…