Flat out

Babies sleeping on their backs reduces the risk of cot death but may flatten their heads. Should we be worried, asks Helen Carter.

Belly up

Since cot-death experts told parents to put babies down on their backs, most infants rarely get to spend time on their fronts. But could 'tummy time' be essential for healthy development? Esther Addley investigates.

Salts cut death in pregnancy

A cheap and simple treatment can halve the chances of women developing a dangerous complication of pregnancy which kills more than 50,000 mothers and their unborn babies a year worldwide.