Specially made hookah tobacco is heated in the bowl and smoke passes through water and is then drawn through a rubber by the smoker.
"The new study reiterates that hookah smoke is a less harmful option compared to cigarette smoking. But I would emphasise more on herbal hookahs which are free of tobacco or nicotine as the best alternative," said Shireen Parker, vice-president of Arabian Nights, a leading exotic lifestyle store in Mumbai.
