What makes adolescents so vulnerable to developing addictions to substances like nicotine, alcohol, and drugs?
是什么使得青少年轻而易举就沾染尼古丁，酒精及毒品？
More vulnerable than any other age group.
尤其是青少年，他们似乎比其它任何年龄群都抵不住诱惑。
Is it a result of peer pressure?
是来自同辈的压力吗？
Of wanting to fit in? In a word, no.
想融入群体？一言以蔽之，不是。
Socio-cultural elements do play their role.
社会文化因素是主要原因。
However, scientists who analyzed the results of many studies on this subject believe the susceptibility of adolescents to substance addiction also has to do with the state of development of a particular region in adolescent brains.
科学家分析了许多相关研究调查，他们认为青少年对物质成瘾的敏感性与大脑内部某特定区域的发展情况有关。
They interpreted that the region of the brain that monitors impulse and motivation isn't fully formed in adolescence.
他们解释说大脑控制神经冲动和动机的区域是在青春期形成的。
This area of the brain experiences a lot of activity and change during adolescence.
大脑的这个部分在青春期经历许多活动并改变。
It's due to this brain region's hyperactivity and quick-fire change that adolescents are more likely than children and adults to want to try out new experiences, to be impulsive and take risks.
由于青春期大脑的这个部分的极度活跃比小孩和速射大人都大，所以青少年更想尝试新的体验，更冲动和更愿意冒险。
