水烟中还包含着大量的尼古丁，这是烟草中主要的成瘾物质。
Shisha smoking also delivers significant levels of nicotine, the main addictive substance in tobacco.
尼古丁是成瘾物质。许多人发现即使自己真的想戒，要停止吸烟也非常困难。
Nicotine is an addictive substance and many people find it very hard to stop smoking, even when they really want to.
尼古丁是烟中的成瘾物质，如果人们可以通过吸烟以外的方式获得尼古丁，那么戒烟就会变得容易。
As nicotine provides the addiction in smoking if you get nicotine without the smoke you can give up easily.
A：烟瘾是一种化学物质吸食成瘾，很难治疗。
A: Addictions are difficult to treat because of the biochemical dependencies our bodies have made to the addicting substance.
大脑中增强对物质依赖的神经通路也能增强对科技的依赖行为，这种行为同样具有成瘾性和潜在的破坏性。
The same neural pathways in the brain that reinforce dependence on substances can reinforce compulsive technology behaviors that are just as addictive and potentially destructive.
例如，人类对苦涩的咖啡或呛人的烟草存在天生的反感，但就是这些物质会让人有成瘾性，成瘾之后这些原本入不得口的东西会变得怡人起来。
For example, humans also have natural aversions to the bitterness of coffee or the harshness of tobacco, but those substances have some addictive qualities, which might make them desirable.
可以肯定的是，心理成瘾有其物质基础- - -否则嗜赌成瘾作何解释？
To be sure, psychological addiction can exist in the absence of physical substance dependence — how else to explain compulsive gambling?
在积极地社会交往中(尤其是接触中)像多巴胺，催产素之类的令人成瘾的化学物质涌进大脑，传遍全身，这会让我们感觉里彼此更近了。
Addictive chemicals such as dopamine and oxytocin surge through the brain and body during positive social interactions (especially touch). This causes us to feel closer to one another.
主要是针对物质成瘾、高血压和体重过重等健康问题。
The main health problems targeted were substance addictions, hypertension and overweight.
“多种物质成瘾在某一染色体上定位的峰值的比较，部分证实了基因易损性对不同物质有重叠。”李说。
"The comparison of peaks for addictions to multiple substances on certain chromosomal locations confirms that genetic vulnerability to different substances overlaps, in part," li says.
研究证实了许多专家的猜测，即某些脑部异常的病变方式都是相似的，且无论成瘾原因是物质依赖、上网，还是打电子游戏。
The study confirmed what many specialists had suspected, that certain brain abnormalities develop in similar ways whether the addiction is substance-based, internet or video-game based.
多巴胺这种会引发愉悦感觉的化学物质，不仅和网络成瘾有关，也和非网络的其他上瘾症有关联。
This chemical, which produces pleasant feelings, is linked not only to Internet addiction but also to other types of non-Internet addictions.
故研究可借鉴在物质成瘾领域中，测量奖励敏感性的延迟折扣任务来衡量个体冲动性的大小。
We can use the delay discounting task to measure the sensitivity to reward that was abroad used in material abuse field.
反复使用一种物质可以导致成瘾或对该物质的依赖。
Repeated use of a substance can also lead to physical addiction or substance dependence.
对化学物质成瘾的管理是一个非常复杂的问题，并且还没有一种简单的方法可以解决这个问题。
Management of chemical addiction is a complex issue, and there is no single formula to solve it.
网络成瘾是一种非物质依赖的行为成瘾，具有一些与其他成瘾行为类似的特征，如突显性、退瘾性、忍耐性和复发性等。
Internet addiction is a kind of behavioral addiction , which is similar too ther addiction on characters, such as salience, withdrawal symptom, tolerance and relapse et al.
成瘾是精神活性物质长期作用于大脑而产生的神经适应性改变，而成瘾性物质的奖赏效应则被认为是产生精神依赖的最主要原因。
Past investigations indicated that rewarding effect of abusive drugs is considered as the major reason, which results in addiction especially psychological dependence.
以前的研究显示，老鼠大脑里也有某些物质正在发生变化，这些物质让它们运动成瘾。
Previous studies suggest something's changing in the mice's brains, too, turning them into exercise addicts.
该化学物质也被认为是酗酒者或吸毒成瘾者在尝试戒酒戒毒时所面临困境背后的原因，尤其是在会令紧张感加剧的压力时期更明显。
The chemical is also thought to be a driver behind the difficulties that alcoholics or addicts have trying to quit, especially during stressful episodes that add to the feelings of tension.
该化学物质也被认为是酗酒者或吸毒成瘾者在尝试戒酒戒毒时所面临困境背后的原因，尤其是在会令紧张感加剧的压力时期更明显。
The chemical is also thought to be a driver behind the difficulties that alcoholics or addicts have trying to quit, especially during stressful episodes that add to the feelings of tension.
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