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Occasionally we hear about the total number of children dying each year in the UK. Occasionally we hear about how infant mortality is on the rise and that we fare badly compared to some other countries. But then we tend to move on, pretty quickly.

In the first in the series, 'Young Lives Lost', Newsnight attempts to unpick why so many of our children are dying.

Health correspondent Deb Cohen begins by looking at how smoking impacts some of the UK's youngest children and investigate whether as a society we're doing enough to bring those numbers down.