Body odour has a reputation problem. It is often treated as a hygiene failure or a social offence. In reality, it is biology at work, plus a big helping of culture.And yet people online are trying chlorophyll shots to make their BO smell better. Hosts Katie Edwards and Dan Baumgardt discuss what evidence there is behind this, plus some of the health conditions that can affect body odour. And we talk to Mats Olsson, a professor of experimental psychology at the Karolinska Institutet in Stockholm, who studies how humans perceive body odour. Strange Health is a podcast from The Conversation is an independent, not-for-profit news organisation. Full credits for this episode available here. If you like the show, please consider donating to support our work. You can sign up here for a free daily newsletter from The Conversation here.Hosts: Katie Edwards from The Conversation and Dan Baumgardt, University of BristolExecutive Producer: Gemma WareEditing and mixing: Anouk MilletArtwork: Alice Mason