Because the brains of adolescents are still developing, smoking nicotine can lead to long-term consequences such as addiction, mental problems, and a loss of impulse control. Because their brains have not completely matured, young individuals are more susceptible to addiction. Juuling and vaping have the potential to lead to the use of other tobacco products. Coughing, dry or scratchy throat, dizziness, nausea or stomach discomfort, and headaches are all possible side effects.