The unkempt and tangled hair of the character "Pengtou Peter" in the famous German children's book is often a sign of children's poor hygiene. But in fact, for children with similar unkempt hair, this phenomenon is not their own problem, but because of genetic mutations.
Recently, scientists have pointed out three mutations in the gene called "Feng Fa syndrome." This sign of hair follicle dryness disorder is as follows: hair is dry, curly, lighter in color, and difficult to comb.
In order to clearly diagnose this symptom, the hair sample was observed by the researchers in two sections and placed under a high performance scanning electron microscope. Studies have found that the straight hair cross section is round, while the curls appear to be slanted, and the cross section of the hair is often triangular or heart shaped and textured from the root to the tail.
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