What can i do if my mother is experiences memory loss from time to time, should i be worried?

Depends on severity: There are many causes of memory loss. Absent injury or stroke, the most common cause of memory problems (a component of dementia) is alzheimer's disease. The risk and incidence of this increases with age. You need to look at the memory loss--is it short term, is it variable, is it associated with gait problems or bladder incontinence (thus suggesting normal pressure hydrocephalus). Check with dr.