- 问题详情:Grayhairissimplyapartofthenormalagingprocess,andtherateyougosilverisgeneticallypredetermined.Goinggrayisnotassociatedwithearlierdeath,andprematuregrayingisnot,generallyspeaking,asignofanillnessorillhealthinyoungeradults.Thereare,however,somes...
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