The shorter the amount of time between administration and a drug''s effects, the more addictive it is. This has been known for decades. It''s one of the reasons why smoking nicotine is so addictive 鈥 smoking as a route of administration goes directly from the lungs to the brain. ...
The science behind why it's so difficult to quit smoking is crystal clear: Nicotine is addictive—reportedly as addictive as cocaine or heroin.
A段是对首句“If it weren't for nicotine, people wouldn't smoke tobacco.的扩展,说的是nicotine的作用。B段亦围绕首句“Breaking nicotine addiction is not easy.”,告诉我们吸烟的危害和其程度。C段用列举的方法陈述nicotine的好处和害处,围绕的还是吸烟上瘾。D段告诉我们 nicotine作为一种 compound的历史、...
1. Nicotine is extremely addictive The main reason why it is so difficult toquit smokingis that nicotine is physically addictive. The nicotine inside cigarettes gives you a temporary, and extremely addictive, high. It can rev you up, making you feel more alert, more focused and happier. After...
One reason is that people become addicted(成瘾) to cigarettes. The addictive substance(物质)in cigarettes is nicotine(尼古丁). When people smoke, the nicotine goes right into the blood stream and makes people feel comfortable. A smoker's body gets used to the nicotine, and if he stops ...
nicotine patches and gum, regular and electronic cigarettes are more addictive because smoking and vaping deliver nicotine to the brain fastest. 药物进入大脑并刺激奖赏通路速度越快,它就越容易成瘾。例如,海 洛因和吗啡具有相似的作用,但海洛因的化学结构增强了其穿透脑血 ...
s mood and temporarily reduces unpleasant thoughts. The effects of nicotine fade after a while and the smokers return to reality. To go through the same pleasant feelings, the person reaches out for another cigarette and thus gets into the cycle. Experts say that nicotine is as addicting as ...
One reason is that people become addicted(成瘾) to cigarettes.The addictive substance(物质)in cigarettes is nicotine(尼古丁).When people smoke,the nicotine goes right into the blood stream and makes people feel comfortable.A smoker's body gets used to the nicotine,and if he stops smoking,he ...
Pretty much anything we find stimulating.Nicotine causes dopamine release.So does Caffeine(in a somewhat indirect way). Like video games, we can develop a dopamine release from many kinds of addictive behavior. Checking email is one in particular. You may not like spending long amounts of time...
根据Many smokers try to stop smoking but because of the addiction to nicotine they feel so uncomfortable that they often find it too difficult to do so .可知尼古丁让人们吸烟上瘾,故选B。【小题2】D细节理解题。根据While governments and health experts have tried to get people to stop smoking ...