The study, published in The Journal of Neuroscience, used a new way of analyzing PET (positron emission tomography) scans to create movies of the dopamine response during smoking to demonstrate for the first time that smoking-induced dopamine activation occurs in a different brain region and much faster in nicotine-dependent men than women
(Terror in a Texas Town (1958), involving Sterling Hayden as a Swedish whaler out for revenge in the Old West, is Exhibit A
These associations remained significant after adjusting for birth year, sex, adjusted maternal age, paternal age, and parity but lost significance when also adjusting for maternal/paternal education, maternal/paternal occupational class, family, income, and maternal origin of birth [117]
The symptoms of popcorn lung are very similar to those of another lung disease called COPD (chronic obstructive pulmonary disease), which is caused by cigarette smoking, but for popcorn lung the symptoms can appear within just 2-8 weeks