| A | B |
| HYPOCHONDRIASIS | imaginary physical illnesses |
| PSYCHOSOMATIC | real physical illnesses exacerbated by stress |
| SCHIZOPHRENIA | severe psychosis characterized by delusions, hallucinations, bizarre use of language |
| BIPOLAR | disorder cycling between mania and depression |
| DEPRESSION | disorder characterized by low moods; delusions of hopelessness and helplessness |
| DELUSIONS | false beliefs |
| HALLUCINATIONS | seeing or hearing things that are not there |
| DISSOCIATIVE | multiple personality disorder |
| ANTI-SOCIAL | person without a conscience; a psychopath, sociopath |
| DEMENTIA | a chronic brain syndrome, such as Alzheimer's disease |
| SOMATOFORM | unconscious mental block leading to loss of physical function |
| CATATONIC | patient who assumes statue-like positions |
| PSYCHOSES | severe mental disorders |
| NEUROSES | older term for minor mental disorders |
| PARANOIA | extreme suspiciousness; delusions of persecution |
| DELIRIUM | acute brain syndrome due to dehydration, fever or other metabolic imbalance |
| INSANITY | a legal condition: not being responsible for one's actions |
| HYSTERIA | older term for dissociative and somatoform disorders |
| PHOBIA | extreme, irrational, and disabling fear |
| DSM | the official guidebook for diagnosing mental disorders |