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This picture taken on July 26, 2015 shows a child playing in a fountain on a square to cool himself amid a heatwave in Binzhou, eastern China's Shandong province.   CHINA OUT     AFP PHOTO        (Photo credit should read STR/AFP/Getty Images)
This picture taken on July 26, 2015 shows a child playing in a fountain on a square to cool himself amid a heatwave in Binzhou, eastern China's Shandong province.   CHINA OUT     AFP PHOTO        (Photo credit should read STR/AFP/Getty Images)

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What NOT to do in a heat wave

CNN's Jennifer Gray offers four surprising tips on how to stay cool during this summer.

What NOT to do in a heat wave

CNN's Jennifer Gray offers four surprising tips on how to stay cool during this summer.