French women see exertion as an integral part of the day. I encourage you to look at every-day movement, what you do in street clothes, as essential to your overall wellness, and not to see exertion as something assigned to the gym. It may mean extra steps in the yard, or not using interoffice mail. Or it may mean riding your bike to work. The point is to practice as much physical exertion for as many moments of the day as you can manage. This is the surest way to overcome the mental hurdle which the idea of regular exercise presents to some of us. Reap the benefits without the bother. If you believe working at your desk leaves you no time for such things, you should realize that stress and fatigue in modern life typically have more to do with a lack of exertion than with too much.