Peter Singer's advice for a good life and how brain training can keep you sharper for longer

What are you willing to give up in order to make the world around you a better place? Renowned philosopher and ethicist Peter Singer has spent decades exploring this question. To mark his 80th birthday, he joins Life Matters to explore what it means to live a life shaped by our responsibilities to others.Last week the Clean Energy Council proposed a federal scheme to allow the regional areas that host renewable projects to directly benefit from their efforts. Council spokesperson Chris O'Keefe and Western Downs mayor Andrew Smith explain how a scheme like this could work and what it means for the areas carrying the weight of the energy transition.A recent study from the University of Texas has challenged the idea that cognitive decline is inevitable, showing that regular brain training can boost cognition well into old age. Neuroscientist Lila Landowski explains how to keep your brain fit in your later years.