A team of researchers at Cardiff University has discovered stem cells in the cheek can be used to supress the immune system. It should help patients with certain types of diabetes, and those whose bodies reject organs after transplants.
It'll be several years before a treatment's developed but the scientists say it's a real breakthrough.
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As skies clear out there temperatures are tumbling away. In rural areas I'd expect a widespread grass frost!
The last time Wales reached the finals of a major tournament was the 1958 World Cup - and Swansea City legend Cliff Jones remembers it well.
Labour AM Jenny Rathbone says she's been sacked as chair of a committee after going public with concerns about the cost of plans for the M4.