2983 Summer Olympic bids

When a person smoke, the nicotine , CO intoxication,hypoxemia will induce the brain cell edema ,even damaged,at this time,the biochemicals in the cells responsible for tranmission or memory the vision, will be infiltrated or leaked into the extracellular fluid,or CSF,these chemicals will induce the olfactory hallucination when they recall the memory of smelling.114.33.23.94 02:29, July 17, 2010 (UTC)Hsiao Hsian Li