一项初步研究表明，人们沉迷于日光浴中时，会诱发成瘾性的神经系统奖赏和适应现象。
A pilot study suggests people hooked on tanning beds may be victims of an addictive neurological reward-and-reinforcement trigger.
例如，有文件表明，烟草公司对其内部研究人员所提供的关于尼古丁成瘾性证据视若无睹。
The companies were shown, for instance, to have cynically disregarded evidence from their in-house researchers about the addictive properties of nicotine.
研究者发现大脑皮层中心的活动跟成就感与成瘾性有典型的相关性。
Researchers saw activity in the brain's mesocorticolimbic centre, the region they said is typically associated with reward and addiction.
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