Hypochondria (or hypochondriasis, sometimes referred to as health anxiety or health phobia) is a somatoform disorder in which one has the unfounded belief that one is suffering from a serious illness. Hypochondria is often characterized by irrational fears of being diseased/dying, obsessions over minor bodily symptoms or imperfections, doubt and disbelief in doctors' diagnosis, constant self-examination and self-diagnosis and preoccupation with one's body. Hypochondriacs often require constant reassurance, sometimes from multiple doctors, family and friends.