Book
Heath C, Heath D. Switch: How to Change Things When Change Is Hard. New York: Broadway Books; 2010. 320 p.
Why we cite it
Applies Jonathan Haidt’s Rider-Elephant metaphor to practical behavior change, providing a three-part framework (direct the Rider, motivate the Elephant, shape the Path) that explains why knowledge alone doesn’t produce change. Relevant to this project because dietary change is a behaviour-change problem — understanding that environmental/structural changes are more reliable than willpower-based approaches reframes how people think about eating habits. Reception: a #1 New York Times bestseller — which speaks to its reach and influence, not to its evidentiary standing here.
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