Gethin Jones and Sara Cox are joined by Dr Xand as he discusses a new breakthrough scan that could prove life-saving to some stroke victims. Matt Allwright investigates shops that charge us for the discounts we see on the shelves. Finance expert Iona Bain tells us to avoid the apps offering to help with credit scores and the top three things you can do to improve your rating. Plus star of the hit crime drama Shetland Alison O'Donnell talks about the tense series finale.