You did many things today. You did not choose all of them. Some things you do the same way, in the same place, every day. Those are habits. A habit runs on its own.
habit
A thing you do the same way, in the same spot. You do it without deciding to.
Your guess
Think about everything a person does in one day. How much of it is habit, done the same way in the same place?
Sources
Lally et al. (2010), How are habits formed: Modelling habit formation in the real world
Wood & Neal (2007), A new look at habits and the interface with goals
Wood, Quinn & Kashy (2002), Habits in everyday life
Graybiel (2008), Habits, rituals, and the evaluative brain
Gollwitzer (1999), Implementation intentions
Wood, Tam & Witt (2005), Changing circumstances, disrupting habits
Milkman, Minson & Volpp (2014), Holding the Hunger Games hostage at the gym (temptation bundling)
Duhigg (2012), The Power of Habit
Clear (2018), Atomic Habits
Fogg (2019), Tiny Habits
Jog, Kubota, Connolly, Hillegaart & Graybiel (1999), Building neural representations of habits, Science 286:1745-1749 — the actual T-maze finding described on screen 5
Barnes, Kubota, Hu, Jin & Graybiel (2005), Activity of striatal neurons reflects dynamic encoding and recoding of procedural memories, Nature 437:1158-1161 — the task-bracketing pattern (loud at cue and reward, quiet in the middle)
Gollwitzer & Sheeran (2006), Implementation intentions and goal achievement: A meta-analysis of effects and processes, Advances in Experimental Social Psychology 38:69-119 — the '94 studies' claim on screen 22; the list currently cites only Gollwitzer (1999)
Dai, Milkman & Riis (2014), The Fresh Start Effect: Temporal Landmarks Motivate Aspirational Behavior, Management Science 60(10):2563-2582 — replaces the 'Milkman, 2021' trade-book citation on screen 25
Verplanken, Walker, Davis & Jurasek (2008), Context change and travel mode choice: Combining the habit discontinuity and self-activation hypotheses, Journal of Environmental Psychology 28:121-127 — origin of the term 'habit discontinuity' used on screen 24
Maltz (1960), Psycho-Cybernetics — the book screens 9 and 10 describe as the source of the 21-day myth; currently cited nowhere
Hunter, Hollands, Couturier & Marteau (2018), Effect of snack-food proximity on intake in general population samples with higher and lower cognitive resource, Appetite 121:337-347 — clean evidence for the candy-jar claim on screen 20. Do NOT cite Wansink, Painter & Lee (2006), the famous office-candy-dish study: Wansink was found to have committed academic misconduct and had numerous papers retracted
Wood (2019), Good Habits, Bad Habits — quoted on screen 20 but missing from the source list
Read end to end and corrected: August 9, 2026. Numbers checked: August 9, 2026.