A free, self-paced textbook in 8 chapters. Read a chapter, then drill it with the 100 companion flashcards using spaced repetition.
A habit is a behavior that has been repeated enough times to become automatic. Once a habit is firmly established, it is performed with little conscious thought, because the brain...
Three influential frameworks dominate modern habit science. Charles Duhigg, a Pulitzer Prize-winning journalist, wrote "The Power of Habit" in 2012 and popularized the habit loop c...
New habits form most reliably when they are linked to clear, specific cues. An implementation intention is a plan that specifies when, where, and how you will perform a behavior, u...
James Clear's Four Laws of Behavior Change provide a complete system for building habits by aligning with the natural stages of the habit loop. The first law, "Make it obvious," fo...
Because habits cannot simply be erased, breaking a bad habit requires changing the loop while preserving its structure. To break a bad habit, Clear recommends inverting the Four La...
Goals set the destination, but identity and systems determine the journey. Identity-based habits, from James Clear, focus on who you wish to become rather than what you want to ach...
A common myth holds that habits form in 21 days, originating from Dr. Maxwell Maltz's 1960 observation that amputees took about 21 days to adjust to a new situation, which was then...
Habits rarely form in isolation, because humans naturally adopt the behaviors of their social group. We imitate the habits of three groups: the close (family and friends), the many...