The lads jetted off to sunny Girona for the European Calcified Tissue Society Congress, where they caught up with some brilliant boneheads about the latest in bone research. In Part 1, we chat to Louise Thomas about bone marrow fat and bone health, Bram van der Eerden about new bone model technologies that could help replace animals in research, Victoria Chatzimavridou about radiotherapy and insufficiency fractures, and Jelena Jadzic about her prize-winning work on alcohol-associated liver disease and vertebral fractures.