My mom (90) lives alone so my siblings and I take turns visiting but she still spends long stretches of time living alone. Recently she has become very angry with my oldest sister (who has done the most to take care of mom), accusing her of stealing her stuff and getting her cell phone service she never wanted. (She previously agreed to the phone). It seems the basic problem is forgetfulness but this woman who has been kind and giving all her life is now growing suspicious of her own kids. She suspects us of trying to get her to move out of her house. Yesterday she suggested a PERS (personal emergency response system) which is a great idea for her but today she forgot that she thought is was a good idea and may end up resenting me if I get her one. Can anyone suggest any reading about strategies for communicating with them and putting their minds at ease?