Vaping releases toxic chemicals, including heavy metals, as well as ultrafine particles that go deep into the lungs. These increase the risk of heart and lung disorders. Health Issues What's the Harm? Texas DSHS VG vs PG: What's the Difference? RED Box Vape Red Box Vape Vaping and smoking together increases lung cancer risk fourfold Prevalence of cigarette and e cigarette use among U.S. adults eligible for lung cancer screening based on updated USPSTF guidelines ScienceDirect