Breastfeeding may half the risk of post-natal depression, according to a new study of nearly 14,000 British women by the University of Cambridge.
Researchers found that women planning to breastfeed had a 50 per cent lower risk of suffering from post-natal depression if they managed to do so.
The benefits of breastfeeding to the mother's mental well-being increased each week up to one month but the long-term effects of breastfeeding could not be studied as only a fraction of mothers continued to breastfeed beyond a couple of months.
The researchers speculated that the positive effects might be caused by the feel-good hormones released when milk is produced. Breastfeeding also relieved stress, helping mothers relax.
The World Health Organisation (WHO) recommends that babies should be given only breast milk until the age of six months, saying that the benefits of breastfeeding are clear-cut.
But there is also a flip side to breastfeeding as the study showed that the risk of depression doubled for those mothers who wanted to breastfeed but for some reason could not.