that do not sag; and, as age creeps on, thighs and buttocks droop with muscular atrophy and with deposits of adipose cells. The possibilities of natural hygienic living, coupled with judicious exercise, are surely worth consideration, if merely for the satisfaction of personal appearance, but their more important effects upon general health and longevity make neglect of these desiderata sinful and criminal.
During a fast moderate exercise in keeping with the daily access of strength is advised, and after its completion constant comprehensive muscular activity is essential to rebuilding and to form-development.
The subject matter of this chapter, then, resolves itself into three requisites, equally divided in importance :
Ventilation of the body within and without;
Activity for its members; and
Rest for their recuperation.
Of similar moment are these hygienic measures with the laws of maintenance elsewhere enumerated.