Daybreak's Health Editor Dr Hilary Jones has told Daybreak that there is a very high risk to premature babies.
"There is a very high risk of a child being handicapped if it is born before 24 weeks, even with modern technology," he added.
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Warmer with a mild, muggy night ahead
The headteacher of Saffie Rose Roussos's primary school has paid tribute to the little girl who was "beautiful in every sense of the word".
Ten people have died on the mountain so far this climbing season - four more than mountaineering officials expect in a typical year.