The findings are particularly interesting since during the study, the researchers used e-cigarettes with and without nicotine, and the conclusions seem to point to the fact that nicotine is NOT the only triggering factor. Although the study was conducted over baby mice exposed to e-cigarettes vapors, the scientists believe vaping byproducts may contain poisonous chemical elements that are harmful to pregnant women.
Previous research has shown that nicotine may potentially cause cardiac problems, and infertility, due to its blood constricting effects. In large quantities, nicotine is one of the most powerful poisons found in nature, and is used by the tobacco plant to protect against natural predators such as hornworm caterpillars.
But when smoked from a cigarette, a very small nicotine quantity hits the brain in less than 7 seconds causing the neurosystem to stimulate the dopamine brain pathways, triggering feelings of pleasure, assimilated to being rewarded for something you have earned. This is the main reason why smokers faced with quitting think they are deprived of something that genuinely belongs to them.