When the Government released the latest statistics on STIs in the summer, one in particular stood out. Syphilis. A sexually transmitted infection which might make you think more 1823 than 2023. But figures in England are currently at their highest since 1948, a rise which is reflected across the UK. James Gallagher speaks to people who have first-hand experience with syphilis to work out why we aren't talking about the disease and it's increase more. And James gets on his bike with resident GP Margaret McCartney to find out whether tracking her stats via her many exercise monitors is improving her physical and mental health or making it worse. Dr Brendon Stubbs, Clinical-academic physiotherapist at Kings College London and Dr Eoin Whelan, Professor in Business Analytics & Society at the University of Galway help unpick the evidence. Presenter: James Gallagher Producer: Clare Salisbury Editor: Erika Wright Production Co-ordinator: Jonathan Harris Studio Producer: Sarah Hockley