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. 2009 Sep 7;587(Pt 23):5551–5558. doi: 10.1113/jphysiol.2009.179432

Figure 1. Differences in sudden death cardiovascular mortality in physically active London bus conductors vs. sedentary bus drivers.

Figure 1

This was the first example showing that physical activity (exercise) was protective against cardiovascular disease. Data from Blair & Morris (2009).