24 citations
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January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
62 citations
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January 2003 in “Dermatology” Sunlight worsens hair loss; protect scalp.
77 citations
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July 2020 in “Journal of the European Academy of Dermatology and Venereology” Environmental factors, hormones, nutrition, and stress all significantly affect skin health and aging.
68 citations
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September 2003 in “British Journal of Dermatology” Shrinking skin cancer increases the chance of cancer in nearby lymph nodes.
59 citations
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November 2015 in “International Journal of Cosmetic Science” Oxidative stress damages hair and contributes to aging, and managing it can help maintain hair health.