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Even when I went out to eat with friends who didn't smoke, there would often be other restaurant customers who smoked, filling the air with a grey haze

Some people find it difficult to sleep or concentrate

These alterations have been shown to worsen behavioral and cognitive symptoms in schizophrenic patients and are correlated to reduced cerebral perfusion and defective innate and adaptive immunity that signals neuroinflammatory responses in the brain (Serlin et al., 2011)

INTERVIEWER Do you believe that a good memory is an essential attribute for a writer because it gives one a deeper well to draw from

So it definitely works