I suspect bad diets are a response to stress. Ways society can collectively act to reduce stress: * reduce crime/criminality, and street disorder like vagranc

I suspect bad diets are a response to stress. Ways society can collectively act to reduce stress: * reduce crime/criminality, and street disorder like vagrancy and open-drug use * create more walking/biking friendly cities * increase incomes The latter two would be greatly facilitated by encouraging/allowing densification. https://www.aeaweb.org/articles?id=10.1257/mac.20170388 https://www.aeaweb.org/articles?id=10.1257/mac.20170388