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三手烟是指吸烟后残留在衣物、家具、头发和皮肤等表面的固体残留物，其污染持续时间可达数年，会通过呼吸道、消化道吸收及皮肤接触等方式危害人类。一项研究显示，三手烟会损伤实验鼠的肝脏和大脑，破坏新陈代谢，影响行为举止，增加患神经系统退行性疾病的风险。研究人员认为，研究对象虽然是小鼠，但这一结果也适用于人类，尤其是婴幼儿。 Third-hand smoke exposure can cripple your brain and liver, affecting your mannerisms, increasing your risk of neurodegenerative diseases, and ruining your metabolism. That is according to a study by researchers at the University of California, Riverside who saw significant health issues in people within a month of exposure to smoke. 美国加利福尼亚大学里弗赛德分校的一项研究显示，三手烟可能损伤人类的大脑和肝脏，影响行为举止，增加患神经系统退行性疾病的风险，破坏新陈代谢。研究人员发现，人在三手烟中暴露一个月会出现明显的健康问题。 The research team analyzed how people were affected by inhaling smoke from another person's clothing, hair, home, or car. 该研究小组分析了从他人衣物、头发、房屋或汽车中吸入三手烟对人体产生的影响。 In previous studies on mice, the same scientists showed third-hand smoke can cause type 2 diabetes, hyperactivity, liver and lung damage, and wound-healing complications. Now, they have shown they can even see an impact on brain and liver tissues. | 
