Behaviour Design
How to break a bad habit without willpower theatre
Willpower is a finite, tired, distracted resource. Here is the design-based way to break a habit you actually want to be rid of.

Trying to break a habit by sheer willpower is like trying to lose weight by gritting your teeth in front of cake. Sometimes it works. Most of the time the cake wins. The cake will keep winning until you change the kitchen.
Identify the cue, not the action
Every habit has a trigger: a time, a place, a feeling, an object, a person. The cigarette isn’t random — it follows lunch. The Instagram scroll isn’t random — it follows opening your phone. Find the trigger and you have something to redesign.
Add friction to the trigger
- Move the phone charger to the kitchen so you can’t scroll in bed.
- Log out of social apps every Sunday so each visit costs three taps.
- Delete the shortcut. The two extra seconds do real work.
- Hide the snacks in a high cupboard. Out of sight is most of the battle.
Add a replacement, not a void
Trying to do nothing at the moment your trigger fires is the hardest version of this. Have a small, easy alternative ready — a glass of water, two minutes of stretching, a book on the table. The brain wants some action. Give it a cheaper one.
Track what triggered it, not just whether you did it
For a week, log not just “did I scroll” but “what was I doing right before.” Patterns will appear within days. Almost always there are two or three triggers doing all the damage. Fix those triggers and the habit collapses.
Don’t aim for “never” in week one
“Never scroll in bed again” is a very breakable rule. “Phone lives in the kitchen after 9:30 PM” is a survivable one. Make the rule about the environment, not about your moment-to-moment self-control.
Try the ideas in this article — in HabitFirst
HabitFirst is a free Android habit tracker built around the same principles in this blog: small habits, two streak numbers, gentle reminders, partial credit.



