1·Only a handful of studies have analyzed the heart effects of smokeless tobacco, and the findings are not as strong as the researchers expected.
只有少数的几个研究分析了无烟烟草对健康的影响，得出来的结并不如所预期的那样联系紧密。
2·And smokeless products contain the same chemical compounds, including nicotine, that have been linked to heart disease in cigarettes.
无烟烟草制品和普通的烟一样同，有包括尼古丁这类的和心脏疾病有关的化学成分。
3·Reductions in smoking and smokeless tobacco use could prevent many of the approximately 12, 300 new cases and 12, 100 deaths from esophgeal cancer that occur annually.
减少吸烟和使用无烟烟草可能每年防止大约12,300个食管癌新病例和12,100个食管癌死亡病例的产生。
4·“We can't say smokeless tobacco is safe from a cardiovascular point of view,” he says.
他说“从心血管的角度来看，无烟烟草并不是完全安全可靠的。”
5·But in the few studies that measured heart attack and stroke rates, smokeless tobacco users did show higher risks of 30% and 40% of these conditions, respectively, compared with those who did not.
但是在少数的一些对心脏病和中风的研究中发现，食用无烟烟草的人确实在这两个方面比没有吸食的人高出了30%和40%。