Using your surroundings to change behavior without relying on willpower.
What the evidence says
- Stable contexts carry behaviour with less deliberate guidance — Wood, Quinn and Kashy’s framing, not this library’s: they write that habits ”do not drain self-control resources to the same extent as nonhabits”, reasoning from Baumeister’s 1998 self-control-resource model, which this corpus treats as contested (faults f002 and f003). A page may state it only in that attributed, marked form, never as a finding — measured, not asserted: in hourly diary reports, behaviour performed almost daily in stable contexts was accompanied by thoughts unrelated to that behaviour, ”presumably because they did not have to consciously guide their actions”, while behaviour performed less often or in shifting contexts was accompanied by thoughts matching it, ”suggesting that thought was necessary to guide action”[1],[2]
- REMOVED 2026-08-31: “Effect persists over time (not just novelty)” — cpi03 makes no persistence claim. The identical bullet on the identical citation was removed from kpi01 the same day; the claim had propagated between k-files. Restore only against a source that measured durability.
- The proximity effect may not depend on conscious engagement — the authors’ own hedge, twice: they report ”the first evidence that the proximity effect may not rely on conscious engagement to affect behaviour” and that it ”may operate non-consciously”. The evidence is that few participants reported noticing the manipulation[3]
- Guyenet’s asymmetry, in his own terms — and they are not visible/hidden: a healthy food environment ”doesn’t contain tempting, calorie-dense foods… it contains little visible food in general; and it provides small effort barriers to eating the healthy food that is visible.” His worked example is a kitchen whose only visible foods are ”whole fruit and nuts in shells,” where eating anything else ”would require reheating something from the refrigerator.” So the asymmetry is visible-healthy against ABSENT-or-EFFORTFUL, not against hidden, and it is advice, not a reported finding — see below[2]
- In the authors’ words, ”a change in the home food environment is associated with weight control benefits in untreated adults” (corrected 2026-09-19 from ”produces weight loss”): in 357 couples where one partner entered an intensive lifestyle intervention, untreated spouses lost 2.4 kg in the Results (the paper’s abstract gives 2.2 kg) against 0.2 kg in controls, and home high-fat-food reductions correlated with spouse weight loss (r = .12)[4]
- The mechanism is the authors’ own hedge, not a finding: physical activity did NOT spread (p=.938), and they write that increasing it “may require more self-initiated behavior change than dietary modifications, which PERHAPS occur passively in response to food cues”[4]