A recent study by the University of California, Davis, revealed that disposable vapes may be more harmful than traditional cigarettes. Researchers tested seven flavored e-cigarettes from popular brands and found that the disposable vapes released elevated levels of cancer-causing toxic metals like lead, nickel, and antimony. Some devices emitted more lead in a day than 20 packs of cigarettes. The study highlighted health risks for teens and young adults, the main users of these products. While cigarettes contain more carcinogens overall, vapes were found to have higher levels of heavy metals. (Dailymail)