I read this today, British breast cancer rates ‘four times higher than eastern Africa’, and was surprised that there was no mention of possible Vitamin D deficiency. That could be a major difference between women in the UK and women in East Africa. It is worth following up on the work of Dr Cedric Garland at the University of California San Diego. He has spent about 30 years working on the different rates of colon and breast cancer in the US where the incidence is low in the south and high in the north-east. He thinks that it is due to vitamin D deficiency, and adequate vitamin D could cut rates for these cancers by a half or more. Start with http://www.grassrootshealth.net/documentation-scientistscall.