Nicotine use supposedly causes "altered development of cerebral cortex and hippocampus in adolescents." That seems very unhealthy. [1] Also, the liquid refills

Nicotine use supposedly causes "altered development of cerebral cortex and hippocampus in adolescents." That seems very unhealthy. [1] Also, the liquid refills can contain an acutely toxic concentration of nicotine. Enough to kill a small child with as little as half a teaspoon ingested or absorbed through the skin. [2] 1. https://www.ncbi.nlm.nih.gov/pubmed/?term=25794473 https://www.ncbi.nlm.nih.gov/pubmed/?term=25794473 2. https://www.aappublications.org/content/early/2014/12/12/aapnews.20141212-1 https://www.aappublications.org/content/early/2014/12/12/aap...