E-cigarettes were invented by business, not medicine. But could they help stub out smoking for good?
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One in three French people think vaccines are unsafe, yet across the country vaccine coverage is rising. Alex Whiting asks why.
A million refugees, crowded shelters, poor sanitation: ideal conditions for infections but here’s how to stop deadly outbreaks.
Werner syndrome is teaching us more about what controls our genes, and may eventually help us find a way to slow ageing – or stop it altogether.