Even if they are using fake cigarettes that smoke can’t be healthy to inhale, right?
They usually smoke nicotine-free herbal cigarettes. I don’t know the long term affects but definitely better than regular cigarettes.
I think it could be considered dedication to their work, especially when you consider they usually have to film a scene several times. Cillian Murphy probably went through thousands of them when filming Peaky Blinders. Lol
From that wiki page:
Research shows that herbal cigarettes compared with regular cigarettes can be just as harmful in terms of the carcinogens they contain.
I’m assuming the benefit is they’re not addictive so you won’t end up smoking packs a day for years.
Nicotine is as addictive as caffeine. It’s the habit that is hard to break.