Shopping vouchers are being offered to new mums as an incentive to get them breastfeeding their babies.
The idea is part of a research project by the University of Sheffield, and will be carried out in Chesterfield.
Researchers are examining ways to boost the low rates of breastfeeding.
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Cloudy with further outbreaks of rain, which are likely to become heavy at first. Staying generally dry after midnight.
Outbreaks of rain will slowly clear all but the far south by morning, where it could turn briefly heavy for a time.
Police in Nottingham are growing increasingly concerned for an 18-year-old girl who has been missing for four days.