最近一段时间,有关指甲上的竖线事关健康的言论被传得沸沸扬扬,它主张一个人如果体力透支,精神长期疲劳,指甲上的竖线就会越来越多,弄得很多人开始为自己的健康忧心忡忡。那么这种说法是否真的值得相信呢?其实如果仔细观察的话,每个人指甲上的细小竖线普遍存在,几乎没有人的指甲像镜面一样光滑。尽管指甲表面变粗糙,无 In recent days, there has been a lot of talk about the healthiness of vertical lines on nails. It argues that if one is physically exhausted and has long-term mental fatigue, the vertical lines on the nails will be more and more, causing many people to start Concerned about their own health. Is this really worth believing? In fact, if you look carefully, the tiny vertical lines on each fingernail are common, and almost no one’s fingernails are as smooth as a mirror. Despite the nails rough surface, no