Your elderly grandfather is deteriorating. at first he seemed only mildly forgetful, but lately he has had trouble recalling the names of close relatives and cannot remember where he is. he used to be very loving and patient, but now he is irascible and very unpleasant at odd moments. this condition is getting worse. he is probably experiencing

He is probably experiencing Alzheimer's disease. Alzheimer's disease is primarily degenerative brain disease with characteristic changes in brain. Symptoms in Alzheimer's dementia are different for each patient. the most common are: forgetting of immediate past events, difficulties in carrying out everyday activities, unexplained mood swings, depression...