Dangers of Vaping: What We Know Smoking and vaping 4 times more dangerous than smoking, doctors find Some reports state that these new, flavored smoking devices are less harmful than tobacco cigarettes but how safe is vaping? In this third part of a four part series, China Daily examines the E Cigarettes, Vaping Linked to Increased Risk of Tooth Decay, Cavities 7 Dangerous Facts About Vaping And Oral Health Vaping while pregnant isn't harmlessstudy uncovers risks to newborn lung health