Great news for the more flatulent among us - breaking wind is a sign of good gut bacterial health. The team discusses a slightly unsavoury experiment in which men weighed their poos, stored them in freezers, and even had their farts measured… all in the name of science. The team also questions the wisdom of rolling out covid-19 booster jabs. Some countries are already gearing up to deliver dose number three, all while poorer populations struggle to get their hands on a first dose. Potential homes have been identified for Martians of the future - the team talks about the discovery of caves on Mars which could be turned into settlements for human explorers. They also discuss the news of a billionaire-funded lab that’s been set up with the aim of ‘curing’ the ageing process. And you even get to hear the words of a swearing duck which has learnt to say ‘you bloody fool’ - yeah, you read that right. On the pod are Rowan Hooper, Penny Sarchet and Alice Klein. To read about these stories and much more, subscribe at newscientist.com/podcasts.

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