body mass index (BMI)

BGStock72/Shutterstock George M. Savva, Quadram Institute Surveys on lifestyle and longevity consistently find that people who do more exercise live longer. So it is surprising to see a report from the Finnish Twins Cohort Study that there is little direct effect of “leisure time physical activity” on lifespan. What makes this study different from others – and is it right? Human behaviour and biology are complex and interact with wider […]