From "Hogwarts Headache" in the Guardian where a new 'illness' was reported :
" I refer you to the distinguished New England Journal of Medicine, wherein Dr Howard Bennett writes: "In each case, the headache pain was dull and the pain fluctuated throughout the day... On further questioning, it was determined that each child had spent many hours reading JK Rowling's latest book."
What the hell is it with kids today? Don't they know enough to put a book down after five or 10 minutes? Sadly, no. Two of the three children diagnosed took painkillers and ploughed on.
Is there any cure? "In all cases, the pain resolved itself one to two days after the patient finished the book," says Bennett. "