Steven N. Blair is a Professor in the Departments of Exercise Science and Epidemiology/Biostatistics at the Arnold School of Public Health at the University of South Carolina. His research focuses on the associations between lifestyle and health. He has published over 480 scientific papers.

Here he discusses a range of issues relating to fitness and health with BJSM editor Karim Khan. He addresses the question ‘Should health policy focus on physical activity rather than obesity?’ which was the subject of a BMJ ‘Head to Head’ http://bit.ly/VadRke