This article is from the magazine Les Dossiers de Sciences et Avenir ndeg220 dated January/March 2025.
While most scientific discoveries are born in laboratories, the one that revealed the virtues of physical exercise on health was born… on a London bus. In 1953, in fact, the epidemiologist Jeremy N. Morris published in The Lancet the first study devoted to the subject: it shows that the controllers of the famous red double-decker buses, who climb 700 steps every day, suffer half as many heart attacks as the drivers, who spend 90% of their working time sitting.