Eating high levels of some soy products - including tofu - may raise the risk of memory loss, research suggests.
Zimbabweans give their views on the idea of a government of national unity to solve the political and economic crisis.
Two Zimbabwean voters - a supporter and an opponent of Robert Mugabe - recount their experiences during the controversial election run-off.
Families around the world tell us what shopping costs
Hillary Clinton is projected to beat Democratic rival Barack Obama in a critical vote in the US state of Pennsylvania, but are their campaigns too hostile?