'Prevention is better than a cure' was the message 20,000 people received when they visited Health Exhibition '96 organised by the Medical Society of Hong Kong University Students' Union and Queen Mary Hospital. The exhibition focused on the circulatory system and showed that diseases affecting it were preventable by following a healthier lifestyle. Board demonstrations, video shows and talks on heart attack, high blood pressure and related diseases were included at the exhibition which was held earlier this month. Medical check-up services on serum cholesterol level, blood glucose level, lung function, blood pressure and weight analysis were also provided free of charge. Exhibition chairman Thomas Cheng Kai-chi said many people in Hong Kong overlooked the important role of the circulatory system in maintaining the normal functioning of the body. He said most heart diseases and vascular disorders were not incurable and the rate of recovery depended very much on the time of detection. 'We hope our visitors were alerted to the major symptoms and treatments of common circulatory diseases,' he said. 'Then if they have any suspicion, they can seek medical advice immediately instead of wasting their precious time on worry.' The 22-year-old second year medical student said he was happy with the feedback from the public and that the number of visitors had doubled from last year. 'I think it is the topic that caught people's attention. Circulatory diseases are very common in Hong Kong and thus people are eager to know more about them - how to prevent them, the symptoms as well as the cures.' He said the exhibition had taken eight months to prepare and cost about $120,000.