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Many assume that how we age comes down to genetics, but environmental factors play a major role. Professor Rose Anne Kenny explains the science behind living a longer, healthier life.

At least 1,400 people have starved to death in Ethiopia's northern Tigray since food aid was suspended because it was being stolen, an official has said. The UN's World Food Programme (WFP) and the US's leading aid agency halted food aid to Tigray about four months ago. A subsequent investigation by Tigrayan authorities found that almost 500 people were involved in the theft, the official told the BBC. Tigray was hit by a brutal conflict in 2020, causing famine-like conditions.