A woman has given birth to a baby after having her ovaries "reactivated" through a new technique developed in Stanford University in the US and St Marianna University School of Medicine, Japan.
Doctors in the US and Japan developed the technique to remove the ovaries, activate them in the laboratory and re-implant fragments of ovarian tissue.
The technique, reported in Proceedings of the National Academy of Sciences, has resulted in one baby being born, whilst another is expected.
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Nearly 38,000 runners will hope to complete Sunday's London Marathon making it the biggest event in its 35-year history.
Rain across central Britain with longer, intense downpours with thunder in places this evening. A lucky few will stay sunny and dry.
Planning on going to the London Marathon tomorrow? Read our handy guide first!