Change might not be fast and it isn't always easy. But with time and effort, almost any habit can be reshaped.

The Golden Rule of Habit Change: You can't extinguish a bad habit, you can only change it.

Hiding what you know is sometimes as important as knowing it.

What we know from lab studies is that it's never too late to break a habit. Habits are malleable throughout your entire life. But we also know that the best way to change a habit is to understand its structure - that once you tell people about the cue and the reward and you force them to recognize what those factors are in a behavior, it becomes much, much easier to change.

Typically, people who exercise start eating better and becoming more productive at work. They smoke less and show more patience with colleagues and family. They use their credit cards less frequently and say they feel less stressed. It's not completely clear why. But for many people, exercise is a keystone habit that triggers widespread change.

At some point, if you're changing a really deep-seated behavior, you're going to have a moment of weakness.

The brain has this amazing ability to find happiness even when the memories of it are gone.