A Washington doctor is claiming that the latest installment in the Harry Potter series can cause migraine headaches and undue stress in young children attempting to plow through the book’s 870 pages. Dr. Howard Bennett says that he has treated at least three cases of severe headache brought on when kids refuse to put the book down for any reason, until they’ve completed it. “The obvious cure for this malady – that is, taking a break from reading – was rejected by two of the patients.”