Sarah Palin spoofed in Alzheimer's book promo

Author Jean Carper has taken a very serious subject -- Alzheimer's disease -- for the subject of her new book and turned to satire to promote it. A promotional video for Carper's "100 Simple Things You Can Do to Prevent Alzheimer's and Age-Related Memory Loss" features the actress Mimi McDonald as Sarah Palin struggling to remember her lines for the taping. The video is entertaining but does it ridicule Palin, or sufferers of Alzheimer's, or both? You be the judge.