As a new type of tobacco consumer goods, e-cigarette has many characteristics, such as novel appearance, easy to carry and no need to burn, which makes many young people become e-cigarette consumers driven by curiosity, causing great harm. What are the hazards of electronic cigarettes? Electronic cigarettes can not help quit smoking, how should we scientifically quit smoking? Hu Jing, chief physician of the Department of Respiratory and Critical Care Medicine of Chongqing People's Hospital, explains for you.