What has ‘Public health’ ever done for us ?

An apple a day might not keep the doctor away. But a good public health team can keep the doctors away for many people!

Public health is about prevention and promotion of health in the society.

Public health is largely responsible for the significant improvements in life expectancy over the last 150 years.

Providing people with clean drinking water, removal of rubbish from houses and streets, good sewage system, and vaccination has saved many millions of lives over the years.

The recent smoking ban in work-places, public places and indoor venues is a modern example of public health activity.

The one area where public health has not been hugely successful is obesity. It may be because of the reliance on nudging the individual to change rather than dealing with underlying structural problems.

Read my letter in BMJ and make your views known at the BMJ rapid response section.

Sundar S. Public health needs to go back to basics, not rely on nudge theory.

Toll-free link:


BMJ. Lifestyle and socioeconomic group on health
Public health needs to go back to basics, not rely on nudge theory
BMJ 2021; 373 doi: https://doi.org/10.1136/bmj.n1153 (Published 06 May 2021)
Cite this as: BMJ 2021;373:n1153

BMJ. Short term impact of smoke-free legislation in England: retrospective analysis of hospital admissions for myocardial infarction
BMJ 2010; 340 doi: https://doi.org/10.1136/bmj.c2161 (Published 08 June 2010)
Cite this as: BMJ 2010;340:c2161

BMJ. Associations of healthy lifestyle and socioeconomic status with mortality and incident cardiovascular disease: two prospective cohort studies
BMJ 2021; 373 doi: https://doi.org/10.1136/bmj.n604 (Published 14 April 2021)
Cite this as: BMJ 2021;373:n604

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