Depression
The word 'depression' describes a range of moods - from someone who has occasional low spirits to a severe problem that interferes with the sufferer's everyday life. People with serious depression have several symptoms, including lack of energy and motivation, weight and appetite changes, sleep problems, anxiety and tearfulness. Some sufferers feel suicidal. In manic depression, these low periods are interspersed with periods of mania - an extremely active state, sometimes with delusions or, rarely, hallucinations.
