Abstinence from it causes an increase in cortical gray matter and a decrease in ventricular volume while its breakdown products, aldehydes, diminish.  
This biphasic substance damages neurons of the superior frontal cortex, Purkinje cells of the cerebellum, and pyramidal cells of the hippocampus.  Abstinence from it causes an increase in cortical gray matter and a decrease in ventricular volume while its breakdown products, aldehydes, diminish.  Chronic use causes thiamine deficiency and Korsakoff's syndrome.  Raising the number of GABA-A receptors, it opens chloride channels and causes postsynaptic inhibition.  FTP, name this substance not to be used when driving.
This biphasic substance damages neurons of the superior frontal cortex, Purkinje cells of the cerebellum, and pyramidal cells of the hippocampus.  
alcohol