19 MRI processing To determine local cortical thickness measurements for each subject, the T 1 -weighted volume scans were processed using the automated CIVET pipeline (version 1.1.12) developed at the Montreal Neurological Institute ( For details regarding CIVET processing steps, see section 3 of Supplementary Information
PM 2.5 dust can activate inflammatory immune cells and promote the release of pro-inflammatory cytokines in the sinus lining, causing: Stimulates the inflammation of the sinus lining, causing nasal congestion, runny nose, postnasal drip, facial or headache, coughing, sneezing, difficulty breathing, and some people may have a foul odor from within the nose
Interestingly, the effects on cortisol secretion patterns tend to remit after quitting smoking, suggesting that the impact of smoking on cortisol is more short-term
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