A new UAE study has confirmed what every shisha lover has long suspected: there are higher levels of cancer-causing metals in shisha products than in cigarettes. The ­research was co-authored by ­Professor Mohamed Al Hajjaj of the University of Sharjah, Abdus Khan of Khalifa University, [...] The study looked at 13 medwakh tobacco products and three shisha products, analysing their properties to determine metal concentrations. Their findings may not have been surprising, but they were terrifying all the same. [...]