在发展的毛发分析技术中,一撮毛发也许会改写一部历史.你留在梳子上的几根头发泄露了你的许多生活秘密.如用它来判定拿破仑之死的秘密和鉴别吸毒者.美国已故总统的头发揭示了他们的生活丑闻.格兰特在生活最后几年中大量服用可卡因,而林肯则是烟酒双毒俱全者,公众曾一直以为他是滴酒不沾的正人君子.一英寸头发能揭示两个半月前的吸毒史.不久前, In developing hair analysis techniques, a handful of hair may rewrite a history, and the few hair you leave on the comb reveal many of your life secrets, such as using it to determine the secrets of Napoleon’s death and to identify drug users. The hair of the late U.S. president revealed his life scandal when Grant took cocaine heavily in the last years of his life, while Lincoln was a dutiful addicted to alcohol and tobacco, and the public had always thought he was a real man who was a drop of alcohol. Hair can reveal the history of drug abuse two and a half months ago, not long ago,