For instance, we can sit down in a chair and in so doing can add a certain amount of exercise to the action itself--also in rising.

With very little effort we can come into the habit of sitting correctly--posing the body as it should be--holding the shoulders in proper position--also the chin so that it becomes a hardship to sit improperly.
All of this has to do with _general physique_.

In walking we can go along with a spring, elasticity, and vigor of motion which forces a fine blood circulation throughout the entire system.

We can stoop over in the act of picking up some object from the floor and at the same time make it a matter of physical exercise, and we may take a hat from the rack while standing away from it, thus stretching ourselves, as it were, into a little needful action.

Putting on an overcoat, or any part of our clothing, may be done in such a way as to set the blood to racing through the body.