Growth of the Hair

    January 1954 in “ Physiological Reviews ”
    Herman B. Chase
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    TLDR Hair growth is cyclic and influenced mainly by local factors.
    The document "Growth of the Hair" by Herman B. Chase provides an in-depth review of the hair growth process, emphasizing the cyclic nature of hair follicles and the roles of the dermal papilla and connective tissue sheath. It details the stages of the hair growth cycle (anagen, catagen, telogen) and the biochemical processes involved, such as keratinization and pigmentation. The study, based on observations from various species, highlights factors affecting hair growth, including x-irradiation, hormones, and chemical irritants, and notes that local factors are more influential than systemic ones. It underscores the importance of the dermal papilla in hair regeneration and the need for further research to understand the control mechanisms of the hair growth cycle.
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