Alcoholism has been a problem for many hundreds of years although the word itself is comparatively modem. Like schizophrenia it has, at various times, been described as a sin, a social problem, a disease and an emotional disturbance. Until recently it stood largely outside the field of public health. Alcoholism has been defined in terms of alcohol's adverse effects on the drinker, his family or society; in terms of getting drunk; in terms of the compulsive nature of drinking and, finally, in terms of specific recognisable physical or psychological symptoms.