Ever heard of hookah smoking? That is where they use a water-pipe. It's apparently becoming popular on college campuses now.
An internet survey of college students found that 43% had used a hookah within the past year. And most said they believed using a water-pipe made it less harmful than smoking cigarettes.
The study, published in the Journal of Adolescent Health, says students should know that hookahs and cigarettes contain some of the same toxins. But that hookah-smokers can inhale 100 times more smoke.