Are you feeling the heat? Temperatures in the UK could reach 40C in some places this week as the Met Office has issued a rare warning for England. And beyond the UK, Europe is also dealing with a debilitating heatwave. Schools are closing, trains are being cancelled and France is restricting outdoor alcohol consumption to preserve emergency services resource. But what does all this do to your body? The Guardian's Science editor, Ian Sample, spoke to our climate correspondent Ajit Niranjan about

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