The behavioural technique may not be dead just quite yet.
Cardiac rehabilitation is a low-cost approach with proven benefits for heart patients, that drastically lowers future cardiac risks. So why do only 10 to 25 per cent of heart patients access it?
Can you really nudge people into washing their hands more? The evidence is far from perfect.
Too much of our discussion about vaccine hesitancy imagines the problem in rational terms. Perceptions about COVID-19 and vaccines are driven by emotion, not reason.