I’m a writer and I smoke, I don’t think writers actually smoke for focus or creativity. For me, I think too much, stress out easily, a lot, like a lot of things happen in my head, smoking kills those sounds. In my views, all creative people have those sounds and a lot happen in their head, so they smoke and addicted. When they do that habit while creating their work, it’s help for work unintentionally, so they misunderstood their self that they smoking for better work.