thanks for the query multiple system atrophy can affect memory of a person if it involves certain areas of memory especially in Alzheimer s disease then it may lead to retrograde amnesia atrophy may occur in severe wasting diseases like malignancy, tuberculosis, diabetes mellitus, thyroid disorders, also may be an end result of prolonged steroid treatment and many other endocrinal disorders and myopathy but the above mentioned disorders usually dont cause memory unuse of a muscle for a prolonged time may lead to atrophy of that muscle age related atrophy can also occur..also can lead to atrophy of brain and may susequently cause memory impairment physiotherapy is of help in atrophy of musculoskeletal system proper physiotherapy maintain proper blood supply of that exercising muscle and is of immense help i think u got my point thanks again for the query