July 2015 in “Journal of the Dermatology Nurses’ Association” A 66-year-old woman experienced hair loss due to Frontal Fibrosing Alopecia, a condition with no consistently effective treatment, but it usually stabilizes over time. More research is needed for better understanding and treatment options.
175 citations
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December 2014 in “PLoS Biology” Macrophages help activate hair follicle stem cells, affecting hair growth and skin repair.
134 citations
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July 2020 in “Experimental dermatology” Hair follicles are normally protected from the immune system, but when this protection fails, it can cause hair loss in alopecia areata.
293 citations
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November 2005 in “Trends in Immunology” Stress can worsen skin conditions and stop hair growth by affecting the body's stress response system.
61 citations
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September 2010 in “Journal of Dermatological Science” Stress hormones and autoimmune reactions can cause hair loss.