Tim Harford and the More or Less team try to make sense of the statistics which surround us. From BBC Radio 4
http://www.bbc.co.uk/programmes/p02nrss1
Does Breastfeeding Increase IQ?
A major 30-year study claims to show breastfed babies become more intelligent, higher earning adults. It's not the first time we've heard that breastfeeding raises IQ levels; but is this evidence any more convincing? Ruth Alexander and Hannah Moore explore the details with Dr Stuart Ritchie from The University of Edinburgh. This programme was first broadcast on the BBC World Service.