What studies say the number one best way to start an exercise habit is to give yourself a reward that you genuinely enjoy.

Once you understand that habits can change, you have the freedom and the responsibility to remake them. Once you understand that habits can be rebuilt, the power of habit becomes easier to grasp and the only option left is to get to work.

The same process that makes AA so effective—the power of a group to teach individuals how to believe—happens whenever people come together to help one another change. Belief is easier when it occurs within a community.

If you tell people that they have what it takes to succeed, they'll prove you right

A movement starts because of the social habits of friendship and the strong ties between close acquaintances. It grows because of the habits of a community, and the weak ties that hold neighborhoods and clans together. And it endures because a movement's leaders give participants new habits that create a fresh sense of identity and a feeling of ownership.

Habits, scientists say, emerge because the brain is constantly looking for ways to save effort.

For a habit to stay changed, people must believe change is possible.