We value movie stars and musicians for their entertainment value, not their scientific expertise. But when they weigh in on important issues pertaining to human health and get things wrong, it is important to set the record straight. Scientists affiliated with the American Council on Science and Health (see acsh.org andhealthfactsandfears.com) do just that. In the second edition ofCelebrities Vs. Science, they respond to one celebrity doozy of a comment at a time.

 ACSH Celebrities Versus Science 2011