71 citations
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May 2007 in “The FASEB journal” Human hair follicles produce and respond to erythropoietin, helping protect against stress.
December 2023 in “Benha Journal of Applied Sciences” Men with male pattern baldness have higher blood sugar, bad cholesterol, and ZAG protein levels than healthy men.
12 citations
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November 2022 in “Toxics” EtG in hair can help detect alcohol use but may be inaccurate in people with certain health conditions.
January 2025 in “Dermatologic Therapy” Alopecia areata may be linked to higher heart disease risk.
11 citations
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February 2005 in “Clinical pharmacology and therapeutics/Clinical pharmacology & therapeutics” Hair cortisol could be a marker for chronic stress in pregnancy, but depression affects cortisol levels differently.
January 2026 in “Journal of Trace Elements in Medicine and Biology” Dogs have more iron and copper in their hair than cats, and outdoor animals have higher iron levels.
5 citations
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February 2022 in “Supportive Care in Cancer” Older age is the main risk factor for hemorrhagic cystitis after stem cell transplants.
2 citations
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January 2011 Zinc deficiency may contribute to alopecia areata and vitiligo.
November 2022 in “Journal of the Endocrine Society” Taking biotin can lead to incorrect low results in free testosterone tests.
24 citations
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October 2018 in “Addiction Biology” Alcohol dependence affects stress hormone levels more than childhood maltreatment.