Scientists may have discovered why hair turns grey

Scientists believe they have discovered the mechanism for hair turning grey, which could help develop treatment to alter cells in order to reverse or halt the process. A new study suggests stem cells may get stuck as hair ages and lose their ability to mature and maintain hair colour. Certain stem cells – which are able to develop into many different cell types – have a unique ability to transition between growth compartments in follicles. These cells lose the ability to move with age, resulting in greyness.

tips

mechanism：机理；结构（mechanic 机械的 ⚙️；mechan- = machine）

halt：停止

stuck：stick 的过去分词

mature：成熟的

stem cell：干细胞（stem 茎；干）

compartment：区间；分隔间

compart：分隔（com- 强调，part 分开）

follicle：毛囊