My mom is 71 years old.  Lately, her behavior has changed.  She has become forgetful and hangs up on people when talking to them on the phone.  She is often hateful at times.  She lies around her house and doesn't want to get out and do anything.  I could go on but just doing little research on Alziemhers, my sisters and I think she may have the onset?

Summarized question: What are the symptoms of Alzheimer's disease?