Chapter 1
Inside the habit building brain
Chapter 2
Why our minds hate breaking the chain
Chapter 3
How the world tracks progress through history
Chapter 4
The bright and dark side of the streak
Ch 1 · Inside the habit building brain
duolingo Understanding how a trigger cue, routine behavior, and satisfying reward connect lets you consciously redesign any daily habit.
Quiz
Which brain structure did MIT researchers in the 1990s identify as the primary hub for habit formation?
Quiz
What are the three components of the neurological habit loop identified by psychologists?
BETA
duolingo Connect daily habit gears to learn how small streaks power real progress.
duolingo Linking new habits to existing triggers makes maintaining daily consistency much easier.
Quiz
What chemical does the brain release in anticipation of a reward, driving us to repeat habits?
Quiz
According to neuroscientific research, when does dopamine spike during a well-established habit loop?
Quiz
Approximately what percentage of the human body's total energy does the brain consume daily?
Quiz
What is the neurological process of converting a sequence of actions into an automatic habit called?
Fun Fact
Habit formation: A 2009 study showed that skipping a single day of a new habit does not materially affect the long-term process of forming it.
Quiz
Which university conducted the landmark 2009 study on how long it actually takes to form a daily habit?
Quiz
According to the 2009 study by Dr. Phillippa Lally, what is the average number of days it takes to form a habit?
Glossary
basal ganglia (noun)
A group of structures deep in the brain involved in motor control and procedural learning. In 1999, MIT neuroscientist Ann Graybiel proved these structures form habits using rats in a maze.
A group of structures deep in the brain involved in motor control and procedural learning. In 1999, MIT neuroscientist Ann Graybiel proved these structures form habits using rats in a maze.