Whether sitting, standing, or walking, these principles, that involve a correct and pleasing carriage and a healthful relation of the organs and structures of the body, should be observed by both men and women. This perfect physical poise which places the muscles, organs, circulation, and even the brain and nervous system in harmonious relationship, adjusted for the best achievement, is well expressed in sculpture dating back to 500-600 B. C., when the Spartans attained supremacy in Greece. This same poise and symmetry is shown in modern sculpture of fine types of manhood and womanhood. [Sidenote: The Feet] It is not enough to have an erect carriage and a well-poised head. We must also have well-directed feet. It is pitiable to think how the work of a fine head may be spoiled by misdirected feet. Weak foot, and its final stage, flat foot, are more common among women than they are among men, because it is not a purely local condition in the arch of the foot, as so many suppose, but primarily due to a general weakened condition of the leg muscles that support the arch. The more vigorous exercise of boys as compared to that of girls protects them in some degree from this malady. [Sidenote: Toeing Straightforward] Weak feet are gradually converted into flat feet by faulty standing and walking posture and lack of leg exercise. Toeing out, whether walking or standing, so commonly noted among girls and women, places a great strain upon the arches of the foot. The correction of this fault by persistent toeing in, Indian fashion, and daily exercise of the leg muscles (rising on the toes twenty to forty times night and morning), will do much to prevent flat foot. [Sidenote: Chairs] Not only in standing, but in sitting, erect posture has been found to be a much more important factor in the maintenance of good health than is generally supposed. A rocker, or any other chair which tilts, is restful to the abdominal circulation, if the lower back is properly supported. Bad posture is common among sedentary people. The ordinary chair invites it. Every chair should be modeled like most modern automobile seats, on a curve to fit the back. Almost any chair can be corrected by placing a cushion so as to support the hollow of the back of the sitter. The responsibility for correct posture rests, however, on the individual and not on the chair. [Sidenote: Sitting] In sitting at a desk or table, when reading or working, the common fault is to adopt a sprawling attitude, with the shoulders hunched up, the elbows stretched outward, the body too far away from the desk or table, and the weight resting on the buttocks. Very often the desk or table is too high and the arms can not rest easily upon it, thus causing a continuous strain on the structures around the shoulder-joints.