At first, Ken Abraham wrote off his mother's changes in behavior as quirks that just come with old age. There was memory loss, physical decline, hygiene issues, paranoia, and uncharacteristic attitudes. He soon realized that dementia had changed her life--and his familiy's--forever. "How is it possible to lose a loved one while he or she is still living, still sitting right in front of you, talking with you, smiling at you--and yet the person...