People often feel they must be crazy to continue feeling bothered by theevents of September 11. Yet trauma is unforgettable. It is normal to be bothered, months or even years later. Symptoms will be ...

But successful societies have recognized that, to be successful, this freakish, perverted element of society must not become too large or influential, or they will disrupt the whole fabric and moral ...

Although most abnormal behaviors, including all stereotypies, indicate poor welfare, some that occur in rare situations are functional and do not indicate a negative situation. There is a wide range ...