Research suggests that investment bankers are more prone to commit fraud when they feel the competitor at their heels.

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.

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

I think I'm smart, and I know I was a good mom. But there wasn't a lot I could point to and say, that's why I'm special.

When people have a willpower failure, it's because they haven't anticipated a situation that's going to come along.

Small wins are a steady application of a small advantage.

Habits are powerful, but delicate. They can emerge outside our consciousness, or can be deliberately designed. They often occur without our permission, but can be reshaped by fiddling with their parts. They shape our lives far more than we realize—they are so strong, in fact, that they cause our brains to cling to them at the exclusion of all else, including common sense.