University of Michigan — MedicalXPress — 3 March 2021
A new University of Michigan study found that adolescents who vape cannabis are at greater risk for respiratory symptoms indicative of lung injury than teens who smoke cigarettes or marijuana, or vape nicotine. Adolescents who vaped marijuana were roughly twice as likely to report “wheezing and whistling” in the chest. “In short, it is all bad but if you also vape cannabis you have a greater number of unhealthy respiratory symptoms than if you just smoke cigarettes or marijuana, or vape e-cigarettes,” said lead researcher Carol Boyd. The findings challenge conventional wisdom that vaping nicotine is the most harmful nicotine product for the lungs. Published in the Journal of Adolescent Health.