People aged under 40 are being urged to have their hearts checked because they may potentially be at risk of Sudden Adult Death Syndrome. The syndrome, known as SADS, has been fatal for all kinds of people regardless of whether they maintain a fit and healthy lifestyle.SADS is an 'umbrella term to describe unexpected deaths in young people', said The Royal Australian College of General Practitioners, most commonly occurring in people under 40 years of age.People aged under 40 are being urged to have their hearts checked, because they may potentially be at risk of Sudden Adult Death Syndrome (SADS)....