Ideally, it would be easy to make sure we all got the exercise
our bodies need every day, but in reality it can be difficult,
what with competing demands and obligations at work and at home.
If you're looking for a way to get started making a positive
change for your health, this visual lecture explains why the one
small change you can make with the most impact is to walk for a
half-hour every day.  Dr. Mike Evans, the lecturer, 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. His video speaks for itself, but some of the
most important highlights are the fact that even if you're
overweight or obese, the difference between being obese and
getting no exercise and being obese and getting even some
activity can be significant when it comes to reducing your risk
factors for various illnesses. Plus, even some brief regular
activity has been shown to re