One aspect of the present disclosure relates to a method for treating body organ aging in a mammal. One step of the method includes identifying at least one target organ in need of a therapy signal. Next, a therapy delivery device is placed into electrical communication with an autonomic nervous system (ANS) nerve target and/or a central nervous system (CNS) nerve target associated with the at least one target organ. The therapy delivery device is then activated to deliver the therapy signal to the ANS nerve target and/or the CNS nerve target in an amount and for a time sufficient to effect a change in sympathetic and/or parasympathetic activity associated with the at least one target organ.
