In Europe and North America, lung cancer has been regarded as one of the rarest forms of cancer in 1912. People have been getting lung cancers mainly from environmental pollutants as manufactured tobaccos haven't been commercialised and introduced to the public in both of the regions just yet

Hm... It's a bit unintuitive to me...

Back then, people were using charcoal and firewoods. There was a lot of smoke and yet not that high prevalence of lung cancer.

When I link that with the fact that consumption of a traditional Middle-Eastern smoking pipe (shisha) is very unhealthy due to charcoal, something feels like a bit inconsistent.

• Not my expertise, I'm just thinking out loud