Dr Bernadette Jones-Freeman, PhD, Monash University, on the epigenetics of ageing and exercise, particularly in skeletal muscle, plus DNA Methylation. Dr Paris Papagianis from Respiratory Pharmacology Lab, Monash University on silicosis early life exposure and lung health, and the disease spanning early life to adulthood. Plus, Dr Rachel Kirby, School of Earth, Atmosphere and Environment at Monash University, on how impacts can concentrate metal at the surface of asteroids, the role that asteroids impacts have in controlling the chemistry of planets, which has implications for the composition of the Earth’s core. Program page: Einstein-A-Go-Go Facebook page: Einstein-A-Go-Go Twitter: Einstein-A-Go-Go with hosts: Dr Shane. Dr Ray, Dr Jen.