Edi Stark puts gut bacteria under the microscope and asks if diet could be contributing to conditions as diverse as heart disease, cancer, asthma, arthritis, autism and depression. Show more
Out of Doors
Ormiston Yew Tree and George Mackay Brown in Orkney
1 hour, 30 minutes on BBC Radio Scotland Highlands and Islands
Mark Stephen spends the night under the Ormiston yew tree in East Lothian, plus he explores the Orkney Islands through the work of writer George MacKay Brown. Show more
Mark Stephen hears stories of the north east's distinctive past. He visits Glenesk in Angus and unearths a long-distance love affair from the early 1900s. Show more
Mark Stephen goes behind the scenes with Shetland fiddlers Hjaltibonhoga as they prepare for their performance at the Royal Edinburgh Military Tattoo. Show more
Janice Forsyth meets Arabella Weir, who worked on The Fast Show, Posh Nosh and Grumpy Old Women, and who talks about one of her Scottish comedy characters. Show more
Novelist Ewan Morrison finds out how science investigates the paranormal with the help of Edinburgh University's Koestler Parapsychology Unit. Show more
Graham Spiers sits in for Shereen Nanjiani and discusses the week's top stories, plus he talks to some of the people in the headlines.
A brand new topical comedy panel show that takes a satirical view of the week's headlines. Show more
The Scottish Premiership kicks off in Dundee, plus live rugby from Scotstoun where Glasgow face Edinburgh. Show more
Gary West with music ranging from the St Laurence O'Toole pipe band to the Big Music Society and Faye Henderson - a selection of highlights from the piping year.
Billy Sloan presents rock and pop music from Scotland and around the world, plus he has the first part of his interview and session with American band Vintage Trouble. Show more
BBC Radio Scotland joins BBC Radio 5 live.