The Professor of Clinical Genetics at Newcastle University explains why it's possible that only 15 cigarettes can lead to your genes becoming mutated.
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Sunderland's winless home run extended to 20 games on Saturday as they drew 2-2 with Millwall at the Stadium of Light.
Kerrie brings you Saturday's forecast
AC/DC co-founder and ex-guitarist Malcolm Young has died aged 64, his publicist has announced.