DEAR DOCTOR K: You recently wrote about e-cigarettes not being safe for teens. What about hookahs? I don't completely understand what they are. Are they OK for my teen? I think he might be smoking them.
DEAR READER: A hookah is a water pipe that people use to smoke a specially made tobacco. Often the tobacco used in hookahs is flavored, which makes smoking it more attractive to some people. A hookah uses coal to burn the tobacco. This creates either smoke or a vapor that is inhaled through a tube.