7th October - Hypoglycaemia
The cause of a rare and severe form of hypoglycaemia - or very low levels of sugar in the blood - is genetic, say researchers.
The life-threatening condition means the body does not have enough energy to function.
Scientists at the University of Cambridge say mutations in the AKT2 gene are to blame. Writing in the journal Science, they say there are already cancer drugs which target a similar process.
Read more about this story on the BBC website.
