Video - 23 and 1/2 hours: What is the single best thing we can do for our health?

In keeping with my last post about the importance of exercise, here is a video I first saw on the blog Runblogger called 23 and 1/2 hours:  What is the single best thing we can do for our health? by Dr Mike Evans.  Dr Evans is the founder of the Health Design Lab at the Li Ka Shing Knowledge Institute, an Associate Professor of Family Medicine and Public Health at the University of Toronto, and a staff physician at St Michael's Hospital.  Enjoy!