A new study suggests they can get addicted , too . " we had previously shown that ultraviolet light has an effect on mood that tanners value , " said mandeep kaur of the wake forest university baptist medical center . " now , in this small study , we ' ve shown that some tanners actually experience withdrawal symptoms when the " feel - good " chemicals are blocked . 据美国“生活科学网” 3月28日报道，美国伟基森林大学浸信医学中心的曼迪普考尔说， “我们以前就知道紫外线对于晒室内日光浴的人的情绪有一定影响” ，这个小型研究发现，当让人“感觉良好”的化学物质被阻挡后，一些美黑者实际上会出现一些不舒服的感觉。
The finding , detailed in the may issue of the journal cancer epidemiology , biomarkers and prevention , supports the idea that persistent exposure to secondhand tobacco smoke in childhood can contribute to the development of cancer later in life , said study team member stephen hecht of the cancer center at the university of minnesota 最近，在那些父母是烟民的婴儿的尿液样本中，美国科学家发现了和香烟烟雾有关的致癌物质。据美国“生活科学网” 5月11日报道，上述研究结果发表在5月份的肿瘤流行病学生物标记和预防专业期刊上。
" we had previously shown that ultraviolet light has an effect on mood that tanners value , " said mandeep kaur of the wake forest university baptist medical center . " now , in this small study , we ' ve shown that some tanners actually experience withdrawal symptoms when the " feel - good " chemicals are blocked . " the study involved only 16 people , too small to be considered conclusive 据美国“生活科学网” 3月28日报道，美国伟基森林大学浸信医学中心的曼迪普考尔说， “我们以前就知道紫外线对于晒室内日光浴的人的情绪有一定影响” ，这个小型研究发现，当让人“感觉良好”的化学物质被阻挡后，一些美黑者实际上会出现一些不舒服的感觉。
The scent of a woman is more attractive at certain times of the month , suggests a new study that had men sniffing women ' s armpit odor . " we were interested whether armpit odor changes across menstrual cycle , " said study author jan havlieek of the department of anthropology at charles university , prague 据“生活科学网”日前报道，捷克首都布拉格查尔斯大学的人类学专家扬哈夫利切克是这项研究的参与者之一，他说： “我们对女性的体味是否会在月经周期中发生改变这个问题很感兴趣。
