This episode of the BBC World Service programme Tech Life explores how artificial intelligence is being combined with electronic "noses" to interpret smell, potentially detecting diseases in the way a dog's sensitive nose can pick up complex odours. Presenter Chris Vallance visits a company developing the technology, illustrating a growing trend of AI being applied to senses beyond sight and sound to extract useful information from previously hard-to-analyse data.

The programme also features Shiona McCallum reporting from Paris on technology designed to help people understand their sleep patterns, and Chris Vallance and Liv McMahon testing bird identification apps during a walk in a park, noting their particular popularity among younger users. The episode runs for around 26 minutes and was produced by Tom Quinn.