Hookahs were first used in the early 14th century in Northern Africa and gradually made their way all over the world. Hookah smoking has become the latest craze among the cosmopolitan elite. Several hookah bars have sprung up in many metros across the world. Many patrons claim that smoking a hookah is far better than cigarettes because the water tends to filter the harmful chemicals and smoke, experts beg to differ. Scientists point out that the hookah might filter out some irritants but the smoke still has high levels of Nicotine, carbon monoxide and other harmful chemicals. The bars are popular amongst the 18-24 year olds.