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Week 1: What is health? Using the evidence

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Image of an advertisement for a calcium preparation called Kalzana. The advert is painted in an Art Deco style and depicts a smiling blonde woman, the picture of health, standing with her arms outstretched against a yellow and orange background. The text promises that ‘Kalzana banishes weakness and disturbances of the system’ and ‘strengthens the cells of blood, body and nerves’.