What’s a keystone? A keystone is the central stone at the top of an arch. It holds all the other stones in place and makes the arch strong.

What’s a keystone habit? A keystone habit is a key habit that can lead to big changes in other areas of your life. When you focus on this one habit, it can help you improve many things, like your health or mood. Examples include exercising regularly or getting enough sleep. 1

A keystone habit…

• influences how we see ourselves

• creates a chain reaction

• helps us great willpower