Module 2 · How habits work · Research-supported

The life of a habit

Acquisition, maintenance, interruption and change — four phases that need different things.

7 min read · Level: Intermediate · Free — no account needed to read

The problem it solves

Why does what helps you start a habit sometimes stop helping later?

The concept

Habits have phases. In acquisition, you decide and repeat; the habit is fragile and needs planning, cues and small wins. In maintenance, the habit runs more automatically but still needs a stable context and a reason to continue.

Interruption happens when life changes the context — illness, travel, a new job. Habit change, or extinction, is when an existing habit is weakened by removing its cues, adding friction, or building a competing habit in the same situation.

Old habits are rarely erased. More often, a new response is learned on top, which is why an old habit can return when you’re stressed or back in an old setting.

Why it matters

Knowing the phase you are in tells you what to focus on: planning in acquisition, consistency and satisfaction in maintenance, recovery after interruption, and cues and replacements during change.

Research-supported: Good studies support it, but there are fewer of them, the effects are modest, or they come from a narrow set of situations.

See it happen

Nadia built a strong running habit, then broke her ankle. Six weeks later, running feels like starting over.

The ordinary first approach

All that progress is gone.

With the idea

She recognises an interruption, not a reset — she returns with a short run on her old route at her old time, where the cues still live.

What changed

She used her old context to reactivate the habit instead of rebuilding from zero.

Easy to get wrong

• Using acquisition tactics forever, when a mature habit needs less planning and more satisfaction.
• Believing an old habit is gone for good because it has been quiet for a while.
• Treating an interruption as the end rather than a pause.

Try it now: Name the phase

1. List two or three of your habits.
2. Next to each, write its phase: starting, keeping, interrupted, or changing.
3. For one, write what that phase needs most right now.

Apply it to one of your habits

Which phase is one of your habits in, and what does that phase need from you this week?

Reflect

• Has an old habit ever come back after you thought it was gone? What brought it back?

Go deeper — evidence & sources

• Lally & Gardner (2013). Promoting habit formation. Health Psychology Review. doi:10.1080/17437199.2011.603640
• Rothman (2000). Toward a theory-based analysis of behavioral maintenance. Health Psychology. doi:10.1037/0278-6133.19.Suppl1.64
• Kwasnicka, Dombrowski, White & Sniehotta (2016). Theoretical explanations for maintenance of behaviour change: a systematic review of behaviour theories. Health Psychology Review. doi:10.1080/17437199.2016.1151372