• The science of Contrology disproves that prevalent and
    all-too-trite saying; 'You're only as old as you feel.' The art
    of Contrology proves that the only real guide to your true age lies
    not in years or how you THINK you feel but as you ACTUALLY are
    as infallibly indicated by the degree of natural and normalflexibility
    enjoyed by your spine throughout life.

    Joseph H. Pilates, William John Miller (1998). “Pilates' Return to Life Through Contrology”, Presentation Dynamics Incorporated