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We all know the cliches about older siblings being responsible, younger ones being creative, and middle children being peacemakers. But is there any evidence our position in the family has an impact on our personality? Madeleine Finlay meets Dr Julia Rohrer, a personality psychologist at the University of Leipzig, to unpick the science behind our intuition about birth order. Help support our independent journalism at theguardian.com/sciencepod

We wanted to bring you this episode from our new series, Black Box. In it, Michael Safi explores seven stories and the thread that ties them together: artificial intelligence. In this prologue, Hannah (not her real name) has met Noah and he has changed her life for the better. So why does she have concerns about him? If you like what you hear, make sure to search and subscribe to Black Box, with new episodes every Monday and Thursday.. Help support our independent journalism at theguardian.com/sciencepod

It’s thought that about 15% of us are affected by tinnitus, and despite its potentially debilitating impact on mental health and quality of life, there isn’t any cure for the condition. Madeleine Finlay speaks to John, who has used CBT techniques to learn to live well with his tinnitus, and Dr Lucy Handscomb, a tinnitus researcher who is involved in trialling a new app that could hold promise for sufferers.. Help support our independent journalism at theguardian.com/sciencepod