Scientists have found the strongest evidence yet that lifestyle is linked to the risk of developing breast cancer.
The biggest review of research into the disease has shown that more than four out of ten cases could be prevented if women exercised, limited their alcohol intake and maintained a healthy weight. Breastfeeding also helps to reduce the risk of developing the disease, which kills 12,000 women in Britain each year.
The study by the World Cancer Research Fund (WCRF ) is an update on its cancer prevention report published in 2007. That report drew on 873 breast cancer studies. Now scientists at Imperial College London have added a further 81 studies carried out in the past few years.
The charity recommends that men and women