Keystone Habits

Bebe: When some habits start to change, it sets off a chain reaction that changes other habits as well. For many people, exercise becomes a keystone habit in their life and they'll eat healthier on the days that they exercise. Bea: There's no such thing as like, a universal keystone habit. Everybody has different keystone habits. So not every one, they see changes in their life when thy start exercising habitually.