In combination with tobacco smoking, which is the practice among the majority of e-cigarette users, the health impacts are compounded subjecting the user to increased risk of a variety of diseases.
10253
儿童和青少年使用电子烟尤其危险。
E-cigarettes are particularly dangerous when used by children and adolescents.
10254
尼古丁极易上瘾，并且会对大脑发育产生持久的破坏性影响。
Nicotine is highly addictive and can have long-lasting, damaging effects on brain development.
Furthermore, there is a growing body of evidence in some settings that never-smoker minors who use e-cigarettes at least double their chance of starting to smoke conventional tobacco cigarettes later in life.
10256
电子烟能帮助戒烟吗？
Are e-cigarettescessation aids?
10257
关于电子烟作为戒烟辅助手段的科学证据尚无定论，仍在争论之中。
The scientific evidence on e-cigarettes as cessation aids is inconclusive and still a subject of debate.
10258
而且也不清楚这些产品在人群层面是否能起到任何戒烟的作用。
There is also a lack of clarity as to whether these products have any role to play in tobacco cessation at the population level.
10259
有一些证据表明，吸烟者可以成功地转向使用电子烟，但很少有人能够停止使用电子烟产品。
There is some evidence that smokers can be successful in switching to e-cigarettes but very few are able to stop using these products.
Switching from conventional tobacco products to e-cigarettes is not quitting as it still exposes the user to the nicotine and the other toxic compounds in the aerosols of e-cigarettes.