Every habit — good or bad — follows the same three-step neurological loop. Master this loop and you gain control over your behaviour at the deepest level.
The habit loop is a three-part cycle that the brain uses to encode and automate behaviour.
A trigger that tells your brain to initiate a behaviour. Cues can be a time of day, a location, an emotional state, another person, or a preceding action. Your brain is constantly scanning for cues that predict rewards.
The behaviour itself — physical, mental, or emotional. This is the habit you want to build or change. The routine is what most people focus on, but without understanding the cue and reward, changing it is extremely difficult.
What the brain gets out of the routine. Rewards can be physical (the buzz of caffeine), emotional (the relief of stress), or social (approval from others). The reward is what teaches the brain whether this loop is worth remembering.
Cues come in five categories: time, location, emotional state, other people, and immediately preceding action. Identifying your exact cue is the first step to redesigning any habit.
The routine is the most malleable part of the loop. Once you've identified the cue and reward, you can experiment with inserting a new, healthier routine that delivers the same reward.
Not all rewards are obvious. The craving underlying the reward is what your brain actually wants — often relief, stimulation, connection, or a sense of accomplishment.

You cannot erase a habit. But you can redesign it. The golden rule of habit change: keep the same cue and reward — change only the routine.
Every long-term goal can be broken down into daily habits. By working backwards from your goal, you can identify exactly which daily behaviours — which habit loops — will compound into the outcomes you want.
Goal: Read more books → Daily habit: Read 10 pages after dinner (cue: dinner ends → routine: read → reward: satisfaction + mental stimulation).
Use a mind map or our goal breakdown template to trace the path from your desired outcome to the specific daily actions that build it.

"The habit loop — cue, routine, reward — is at the core of every behaviour. Change the routine and you change the habit."
— Charles Duhigg, The Power of Habit