Module 2 · How habits work · Research-supported

Friction: the small effort that decides

Tiny extra steps quietly decide what you do — in both directions.

5 min read · Level: Beginner · Free — no account needed to read

The problem it solves

Why can a tiny extra step decide whether something happens at all?

The concept

Friction is the effort between you and an action: steps, distance, set-up, decisions. Small amounts of friction have surprisingly large effects on everyday behaviour, because habits run best when they are easy.

Friction works in both directions. Removing it makes a wanted habit more likely; adding it makes an unwanted one less likely. Where the healthy snack sits in the fridge, whether the phone is in the room, whether the gym bag is packed — all friction.

Friction is one of the most practical levers you have, because you can change it once and it keeps working every day without extra willpower.

Why it matters

Research on self-control suggests that people who seem disciplined often arrange their situations so that temptation is rare and good choices are easy, rather than resisting more in the moment.

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

Jake keeps his guitar in its case, in the cupboard, and practises about once a month.

The ordinary first approach

He needs to be more committed to learning guitar.

With the idea

He puts the guitar on a stand next to his chair, tuned and ready.

What changed

Playing went from five steps to one, so short practice happens on ordinary evenings.

Easy to get wrong

• Underestimating how much small steps matter.
• Adding friction to good habits without noticing — like keeping workout clothes in the laundry basket.
• Assuming friction only matters for “weak” people; it affects everyone.

Try it now: Count the steps

1. Pick one habit and list every step between you and starting it.
2. Cross out any step you could remove or do in advance.
3. Do one of those changes today.

Apply it to one of your habits

For one of your habits, which single step could you remove or prepare in advance?

Reflect

• Where does friction currently protect a habit you don’t want?

Go deeper — evidence & sources

• Duckworth, Gendler & Gross (2016). Situational Strategies for Self-Control. Perspectives on Psychological Science. doi:10.1177/1745691615623247
• Hofmann, Baumeister, Förster & Vohs (2012). Everyday temptations: An experience sampling study of desire, conflict, and self-control. Journal of Personality and Social Psychology. doi:10.1037/a0026545
• Hollands, Shemilt, Marteau, Jebb, Kelly, Nakamura and colleagues (2013). Altering micro-environments to change population health behaviour: towards an evidence base for choice architecture interventions. BMC Public Health. doi:10.1186/1471-2458-13-1218