Aging

All systems are subject to aging. Besides cancer, understanding and controlling the aging process is a central problem of applied biology. Aging means the change in properties of a system with time under specific conditions. For organic lifeforms, the problems of aging are senescence (the general deterioration of the body with increasing age). It is still unclear why senescence — the general deterioration of vitality and resistance to adversity with advancing age — occurs and how it works. One reason may be normal wear and tear damage, damage that naturally and inevitably occurs as a result of normal use or aging.