Sure. Igniting a foreign substance and introducing it into a human’s very delicate respiratory system. What could go wrong? /s
Never understood the concept of wanting to inhale smoke.
Ironically, smoking mullein has pretty much put a stop to my asthma problems. I suppose it might cause lung cancer down the road, but I’ve got enough medical issues that I’m not likely going to have a long lfiespan anyhow (I have five or six different autoimmune disorders), so I might as well be comfortable during whatever time I’ve got left.
You’ve asked the right question. If these are used to quit tobacco successfully, then they might have overall benefit to a person’s health, but it’s questionable whether inhaling burning smoke of any kind is a good idea for those not already smoking and wanting to quit.