头发的颜色通常不会被当做人类特征的表现。但其实,头发的颜色既是一种外在的展现,也是基因显性成分的表现,并且根据携带者的性别不同,会有不同的表现。例如,金发美女通常被认为是极具女人味的。事实上,科学研究发现,金发美女比一般女性拥有更多的雌激素。因此,金发美女可能比那些深色头发的女性具有更出众的外表和更“朝气蓬勃的个性。令人吃惊的是,金发似乎与男性荷尔蒙水平的联系并不很大,如果有的话,尽管更多的研究总是能有令人惊喜的发现。金发的男性和女性平均有130,000根头发,明显多于深色头发人的100,000根和红头发人的80,000根。
2.Redheads Get Hurt Easily
2.红头发的人更容易受伤
Redheads are often stereotyped as hot-tempered. While the jury may still be out on thatparticular personality trait, the science is fairly strong on the fact that redheads are definitelyprone to getting sore—referring, of course, to how they perceive pain. Dentists and scientificresearchers have noted that natural redheads are in fact more sensitive to pain than blonds orbrunettes.At the same time, redheads are hit with an unfair and ironic combination—they areless sensitive to the effects of painkillers than blonds or brunettes. Redheads often avoidgoing to the dentist, and it turns out that a dose of painkillers 20 percent higher than thenorm may be needed to properly inhibit their pain reception, according to a study recentlypublished in the British Medical Journal. Redheads are also more susceptible to skin cancer,and, oddly, never develop gray hair. Redheads may eventually turn blondish, and then purewhite.
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