" Teitel's] self-help book may be essential for anyone who has to deal with a disease that robs their loved ones of their personality, that short circuits their brain waves, making it impossible to get a spoon from the table into their mouths. 'I've been there and can assure you that there really is a light at the end of the tunnel. You will come out of the darkness, ' says Teitel, who brought her skills honed as a teacher to this book."-Newsday " Teitel's] book offers the basics about various forms of dementia, including early symptoms and diagnosis, behavioral and emotional changes, and...