In recent years attention of medical doctors and psychologists is focused on obesity. The reason is not its mass incidence but its primary effect on other diseases - cardiovascular and oncological ones. Weight reduction classes are one of the activities in primary prevention of these diseases. Behavioural therapy of over- weight in the Healthy Lifestyle Centre involves stimulating the respondents motivation to reduce their weight, to maintain the weight loss. It seems to be the best working method with obese sibjects.

        Key words: obesity - weight reduction - behavioural treatment of obesity - lifestyle changes