Loud Health Previous Article Empathy might be retained in Alzheimer's disease Next Article 'One-of-a-kind' girl born with heart outside chest has pioneering surgery Is noise an invisible killer? James Gallagher investigates....Read more https://www.bbc.co.uk/sounds/play/m002b6wr Previous Article Empathy might be retained in Alzheimer's disease Next Article 'One-of-a-kind' girl born with heart outside chest has pioneering surgery