Health and Wellness Atlas

How The Body Thrives
Atlas Trail

Evidence, Diet and Doubt: Three Turning Points in Public Health

7 stops

Three mid-to-late twentieth century moments changed what the field knew, or thought it knew: a cohort of British doctors that proved smoking caused lung cancer, a Senate report that tried to tell Americans what to eat and was fought over ever since, and a historian's argument about why people stopped dying so young that other historians still dispute. This trail follows the studies, the people behind them, and the open question one of them left behind.

Stop 1 of 7.
Milestones

1951: Doll and Hill begin the British Doctors Study, following a 1950 hospital study that had already suggested a link.

Stop 2 of 7.
Figures

One of the two epidemiologists behind the study.

Stop 3 of 7.
Figures

The medical statistician who co-led the study and later named the Bradford Hill criteria for causal inference.

Stop 4 of 7.
Milestones

1977: a Senate committee tries to set national dietary guidance, and industry pushes back.

Stop 5 of 7.
Figures

The senator who chaired the committee for its entire nine years.

Stop 6 of 7.
Milestones

1976: Thomas McKeown argues nutrition, not medicine, drove the historic mortality decline.

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