News Heart disease killer 13/04/2023 FacebookTwitterEmail HIGH RISK: Professor Joseph Selvanayagam said there were a number of factors that contributed to Mount Gambier's high rate of heart disease. Picture: Supplied Sophie Conlon HEART disease kills about 50 per cent of the Australian population each year and due to several factors, Mount Gambier […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password