Afterpage

The Power of Habit

Charles Duhigg

For people who want to understand why habits form and how to change one that's stuck, at home or at work. It's story-heavy, so it suits readers who like journalism more than checklists.

A week with this book

A short summary today, then one small action a day for six days. Free for your first book.

The Power of Habit Charles Duhigg

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Day 1

The ideas the week uses

Charles Duhigg, a journalist, explains how habits work in individuals, companies, and societies. His central idea is that every habit follows a loop, and you can change a habit by understanding its parts.

  1. The habit loop. A habit has three parts: a cue that triggers it, a routine you perform, and a reward you get. Over time, the brain runs the loop automatically.
  2. Cravings drive habits. Habits become powerful when the brain starts anticipating the reward as soon as it sees the cue. That anticipation is the craving that makes habits hard to resist.
  3. Keep the cue and reward, change the routine. Duhigg calls this the golden rule of habit change. You can rarely remove a cue or reward, but you can swap in a different routine that satisfies the same craving.
  4. Keystone habits. Some habits trigger changes in others. Duhigg's examples include exercise and family dinners, and a company that transformed itself by focusing on worker safety.
  5. Belief and small wins. Change often sticks when people believe it's possible, frequently with the help of a group. Small wins build that belief.

Where it overreachesThe willpower chapter leans on ego-depletion research, the idea that self-control runs out like fuel, and a 2016 preregistered replication across 23 labs found close to no effect. Some success stories are also simplified for narrative.

Days 2 to 7

How to apply The Power of Habit

10 to 20 minutes each, with a two-minute version for a bad day.

Printable week card (one page)

  1. 2Name the routineChoose one habit you'd like to change and write down exactly what the routine is.
  2. 3Find the cueNext time the habit happens today, write down five things: where you are, the time, how you feel, who's around, and what you just did.
  3. 4Test the rewardWhen the urge hits today, do something different and see if it satisfies the craving.
  4. 5Write your planWrite a one-sentence plan: when the cue happens, you'll do the new routine to get the reward.
  5. 6Pick a keystone habitChoose one keystone habit that could improve several areas at once, and do it today.
  6. 7Recruit supportTell one person or group about the habit you're changing and ask them to check in with you.

Sample

Day 3, in full

This is what lands in your inbox that morning.

AfterpageDay 3 of 7 · Action

Find the cue

Today’s action · 10 to 20 minutes

Next time the habit happens today, write down five things: where you are, the time, how you feel, who's around, and what you just did.

How

Duhigg suggests these five categories because almost every cue falls into one of them. Record them each time the urge appears. After a few times, the pattern usually shows.

Why this one

Isolating the cue is a key step in Duhigg's method. Without it, you can't plan a new routine for the right moment.

If today is a bad day

Note the time and your mood the next time the urge appears.

In short

Questions about this book

Who is The Power of Habit by Charles Duhigg for?

For people who want to understand why habits form and how to change one that's stuck, at home or at work. It's story-heavy, so it suits readers who like journalism more than checklists.

What are the main ideas in The Power of Habit?

Charles Duhigg, a journalist, explains how habits work in individuals, companies, and societies. His central idea is that every habit follows a loop, and you can change a habit by understanding its parts. The habit loop; Cravings drive habits; Keep the cue and reward, change the routine; Keystone habits; Belief and small wins.

What do you do in the Afterpage week for The Power of Habit?

Day 1 is a short summary. Then one action a day, each 10 to 20 minutes: Name the routine; Find the cue; Test the reward; Write your plan; Pick a keystone habit; Recruit support. Day 7 also has a recap.

Where does The Power of Habit overreach?

The willpower chapter leans on ego-depletion research, the idea that self-control runs out like fuel, and a 2016 preregistered replication across 23 labs found close to no effect. Some success stories are also simplified for narrative.

What is the first action in the The Power of Habit week?

Name the routine. Choose one habit you'd like to change and write down exactly what the routine is. If you only have two minutes: Write one sentence describing the habit's routine.

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