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Grey-market injectable peptides – a category of substances with obscure, alphanumeric names such as BPC-157, GHK-Cu, or TB-500 – have developed a devoted following among biohackers and health optimisers. To understand how these unregulated substances have become mainstream and what they could be doing in our bodies, Madeleine Finlay hears from journalist Adrienne Matei and from Dr Anna Barnard, an associate professor at Imperial College London who researches peptides

The minister for energy and climate change, Chris Bowen, tells Guardian Australia’s political editor, Tom McIlroy, that despite shortages at petrol stations around Australia, there have so far been no disruptions to the country’s fuel supply. Bowen responds to criticisms about the Albanese government’s communication to the public, as the second month of the US-Israel war on Iran continues to send shockwaves around the world. The minister also argues that rationing fuel is not necessary for now, and that having a staged plan with the states is good government at work

Jo Tovey speaks with Patrick Keneally, Gabrielle Jackson and Patrick Commins about Anthony Albanese’s rare national address, cost-of-living relief and whether the prime minister has done enough to distance Australia from Donald Trump

The prime minister addressed the nation on Wednesday evening in a rare move to reassure the public, as the economic fallout from the war on Iran continues to escalate. Political editor Tom McIlroy speaks to Nour Haydar about what Anthony Albanese’s speech tells us about how our lives could be affected by the war in coming months

David Smith speaks with Reged Ahmad about how the Iran war is testing Donald Trump’s ability to bend the world to his will