Tobacco use among teens has been targeted since the 90's and before when the government finally took a stance against big tobacco
In addition to being a known cause of cancer, cadmium can lead to kidney failure, brittle and painful bones and chronic breathing issues such as bronchitis and asthma
Bulky DNA adducts and risk of cancer: a meta-analysis
Chemical residues: Cigarette butts contain toxic substances such as nicotine, heavy metals (lead, cadmium, arsenic) and tar, which are released during smoking
Thanavala and colleagues note: While cannabis has proven health benefits in pain management, sleep, relieving the symptoms of chemotherapy-induced nausea/vomiting in cancer patients, and in patients experiencing seizures, there is simply a lack of robust evidence about cannabis safety when delivered from vaping products. They add that further research is needed first, to investigate the long-term effects in people who regularly vape CBD and nicotine, and second, to evaluate the effects of vaping products that contain other types of cannabinoids, including tetrahydrocannabinol (THC), the psychoactive component of cannabis
Alongside that, the generally accepted personal limit is two vaping devices