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2 clusters · 4 sources · 30 days · First seen · Last updated

Biological and medical factors of hair pigmentation

Overview

Medical and biological research has identified various factors influencing hair pigmentation and the onset of premature graying.

Initial findings highlight lifestyle and medical contributors, noting that smokers are approximately 2.5 times more likely to experience graying before age 30. Other significant factors include chemical exposure from hair products, chronic stress, autoimmune diseases, thyroid dysfunction, and nutritional deficiencies in vitamins B6, B12, D, E, biotin, and iron.

Further studies into biological mechanisms show that hair color transitions, such as blond children becoming brunettes, are driven by the intensification of eumelanin production by melanocytes. Research also suggests that the rate of graying may vary by hair color; specifically, individuals with darker hair may require higher concentrations of minerals like copper to support the pigmentation processes necessary to maintain color.

Entities

Dr. Cezar · New York University

Timeline

  1. 3 days ago

    [HEALTH] 2 sources
    Biological factors influencing hair pigmentation and graying

    Research explores why hair color changes with age, noting that many blond children become brunettes due to increased eumelanin production and how copper levels may influence pigmentation.

  2. about 1 month ago

    [HEALTH] 2 sources
    Medical factors linked to premature graying of hair

    Medical research identifies smoking, chronic stress, chemical exposure in hair products, and nutritional deficiencies, such as low iron and vitamins, as primary causes of premature graying.

Sources

cancan.ro · javedch.com · newsweek.ro · urdu.arynews.tv