A 5 cm hair sample can reveal blood type and keratin type for forensic use.
37 citations
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January 2010 in “Acta dermato-venereologica” People with early onset baldness have higher bad cholesterol and lower good cholesterol, increasing their heart disease risk.
6 citations
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September 2013 in “Journal of Evolution of Medical and Dental Sciences” Low CD4 counts in HIV patients are linked to more skin disorders.
1 citations
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February 2023 in “Siriraj Medical Journal/San Sirirat” Thai males with hair loss have lower hair density in the occipital scalp compared to other Asians.
Selenium levels are similar in healthy people from both high and low NPC risk areas.
December 2015 in “Вестник дерматологии и венерологии” Men with male pattern baldness may not have different hormone levels, but their hair follicles are likely more sensitive to hormones.
July 2010 in “学術講演梗概集. A-1, 材料施工” Finasteride effectively slowed hair loss and promoted hair growth in Taiwanese men with AGA.
2 citations
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December 2021 in “Cureus” Low vitamin D levels are linked to hair loss, and vitamin D might help treat it.
1 citations
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November 2024 in “Diabetes Metabolic Syndrome and Obesity” A specific gene variant is linked to severe insulin resistance and hormone imbalance in a teenage girl.
23 citations
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September 2016 in “Archives of Dermatological Research” Vitamin D levels do not affect the risk of developing alopecia areata.
March 2011 in “European Urology Supplements” CEC levels may be a useful marker for predicting prostate cancer progression.
1 citations
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October 2013 in “Expert Review of Dermatology” Diagnosing alopecia areata is challenging and requires careful examination and various tests to distinguish it from other hair loss types.
12 citations
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January 2019 in “International Journal of Trichology” Trichoscopy is useful for detecting and monitoring androgenetic alopecia.
4 citations
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May 2022 in “BMC Women's Health” High levels of anti-Müllerian hormone can indicate polycystic ovarian syndrome in women who can have babies.
September 2025 in “International Journal of Zoology and Applied Biosciences” Women aged 21-26 have a higher rate of PCOS.
1 citations
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August 2025 in “JDDG Journal der Deutschen Dermatologischen Gesellschaft” People with alopecia areata may have a higher risk of thyroid diseases.
January 2020 in “Medpulse International Journal of General Medicine” Trichoscopy helps diagnose and monitor hair loss, showing different signs at various stages of hair thinning.
November 2025 in “Biological Trace Element Research” Hair mineral analysis doesn't reliably show blood mineral levels but may help track long-term mineral trends.
17 citations
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July 2015 in “Biomolecules and Biomedicine” High Nesfatin-1 and low Vitamin D may increase blood pressure and heart rate in women with PCOS.
November 2023 in “Journal of Investigative Dermatology” The study identified key immune cell differences between mild and severe alopecia areata.
110 citations
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July 2010 in “Journal of The American Academy of Dermatology” Hair loss linked to higher heart disease risk in both men and women.
24 citations
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October 1994 in “Fertility and Sterility” People with hair loss may have different levels of certain hormones due to changes in hormone processing.
46 citations
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June 2015 in “American Journal Of Pathology” Diabetes causes lasting cell dysfunctions, leading to serious complications even after blood sugar is controlled.
August 2013 in “Fertility and sterility” Metformin can help diagnose and treat high testosterone levels in women, often due to insulin resistance rather than a tumor.
13 citations
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February 2020 in “Clinical, Cosmetic and Investigational Dermatology” Men with hair loss have higher BMI, waist size, blood pressure, and are linked to smoking and inactivity.
96 citations
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March 2003 in “Life Sciences” Atopic dermatitis patients have much higher acetylcholine levels in their skin, which may cause itching.
July 2022 in “International Journal of Contemporary Medicine” Lower Paraoxonase 1 levels in alopecia areata patients suggest antioxidant treatment might help.
December 2020 in “Ambiance in Life” Women with hair loss may have higher heart disease risk.
10 citations
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February 2023 in “Archives of Dermatological Research” Alopecia areata is more common in Black and Hispanic people but less diagnosed in those with lower socioeconomic status.
3 citations
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December 2021 in “Acta dermato-venereologica” People with androgenetic alopecia have a higher risk of metabolic syndrome.