In one of my favorite video lectures, Dr. Mike Evans gives a convincing answer to the question “What is the single best thing we can do for our health?”

Dr. Mike Evans is 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.

Conceived, written, and presented by Dr. Mike Evans
Illustrated by Liisa Sorsa
Produced, directed, and filmed by Nick De Pencier
Picture and sound edit by David Schmidt
Gaffer, Martin Wojtunik
Whiteboard construction by James Vanderkleyn
Production assistant, Chris Niesing
©2011 Michael Evans and Mercury Films Inc.

John J. Ratey MDI have faith that when people come to recognize how their lifestyle can improve their health span—living better, not simply longer—they will, at the very least, be more inclined to stay active. And when they come to accept that exercise is as important for the brain as it is for the heart, they’ll commit to it.

JOHN J. RATEY, MD, "Spark" (New York: Little, Brown and Company, 2008)