The Japanese eat very little fat and suffer fewer heart attacks than the British.
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The French eat a lot of fat and also suffer fewer heart attacks than the British.
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The Japanese drink very little red wine and suffer fewer heart attacks than the British.

The Italians drink excessive amounts of red wine and also suffer fewer heart attacks than the British.

The Germans drink a lot of beer and eat lots of sausages and fats and suffer fewer heart attacks than the British.

Conclusion: Speaking English causes heart attacks.