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Kovalkov A, Jankov K, Gyuraszova M, et al

These results suggest that acute smoking of cigarettes may transiently decrease negative symptoms in patients with schizophrenia, but it is unclear whether this effect is attributable to nicotine, other components of cigarettes, or the act of smoking

If they had been smokers, there wouldve been no way to isolate the causes and effects

19 The laws also required that manufacturers place the now ubiquitous warning labels on their tobacco products

Another option, called Mix 'N' Vape, allows you to purchase branded e-liquids in economical formats, to which you can add nicotine boosters or nicotine salts

doi:10.1038/s41467-020-19493-3