March 2026 in “Nutrients” Hair manganese may relate to cardiometabolic health, not coronary artery disease severity.
August 2021 in “BMJ Case Reports” A woman with lupus had blood cell destruction, treated successfully with medication.
October 2021 in “International Journal of Research in Dermatology” People with alopecia areata often have low vitamin D levels, which may worsen their hair loss.
8 citations
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October 2018 in “Dermatologic Therapy” About 41% of Indian hair loss patients have low enzyme activity that affects hair loss treatment effectiveness, with men affected more than women. Testing for this can guide treatment.
March 2022 in “medRxiv (Cold Spring Harbor Laboratory)” People with blood group O may have a higher risk of developing post-COVID-19 syndrome.
4 citations
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June 2025 in “JMIR Formative Research” Hair cortisol concentration may reflect some physiological stress but doesn't strongly correlate with perceived stress.
January 2019 in “Journal of the Egyptian Women's Dermatologic Society (Print)” People with androgenetic alopecia have a higher risk of heart disease.
July 2024 in “Heart Lung and Circulation” Age, diabetes, and cardiogenic shock at PCI are key factors linked to in-hospital death in STEMI patients with hypertension.
Hair loss treatment using stem cells from baby teeth was effective for 75% of men tested, with mild side effects. A scoring system may predict how well this treatment works.
December 2024 in “Journal of Applied Toxicology” High doses of dihydroartemisinin caused reversible liver toxicity in rats, with females more affected than males.
1 citations
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January 2016 in “INTAS POLIVET” High selenium levels in some areas cause health issues in cows and buffaloes, but blood tests remain normal.
The method accurately measures finasteride in capsules.
4 citations
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January 2012 in “Human health handbooks” Normal iron levels are crucial for healthy skin, hair, and nails.
41 citations
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July 2002 in “Clinical and Experimental Dermatology” Effective hair loss assessment requires a mix of precise measurement methods.
May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
December 2025 in “Microbes and Infectious Diseases /Microbes and Infectious Diseases” Fungi and iron deficiency are linked to hair loss in alopecia patients.
14 citations
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February 2008 in “Stem Cells and Development” Seven genes are highly expressed in both germ-line and hematopoietic stem cells.
June 2024 in “Journal of Cosmetic Dermatology” Higher homocysteine levels may inhibit hair growth and are linked to androgenetic alopecia.
Hair can show daily calcium changes, linked to body calcium levels and influenced by hormones, and can help assess calcium metabolism issues.
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.
5 citations
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August 2012 in “Archives of Dermatology” The immune system can cause permanent skin and hair whitening by attacking pigment cells.
2 citations
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January 1986 in “PubMed” PIXE is an effective method to analyze hair's elemental composition.
296 citations
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October 2018 in “General and Comparative Endocrinology” Hair cortisol is a reliable way to measure long-term stress in animals.
September 2024 in “Journal of Bioscience and Applied Research/Journal of Bioscience and Applied Research ” COVID-19 can cause hair loss due to stress, with inflammation markers like D-dimer levels playing a role.
October 2018 in “Journal of Clinical Research in Pediatric Endocrinology” Children with classic congenital adrenal hyperplasia have thicker heart fat and more heart and blood vessel risk factors, especially if their condition is not well-controlled.
January 2026 in “Veterinarski glasnik” The orphaned foal stayed healthy despite challenges, showing the need for thorough health checks.
January 2017 in “Egyptian Journal of Dermatology and Venereology” Iron deficiency may contribute to chronic hair loss in premenopausal women.
11 citations
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July 2014 in “Clinical Rheumatology” Cyclophosphamide often causes gastrointestinal issues, hair loss, and low blood cell counts in Chinese patients with autoimmune diseases.
130 citations
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October 2006 in “Allergy” Allergic reactions to blood thinners are rare but can be serious, requiring careful testing and alternative treatments.
Hair test results can be misleading due to external contamination, so they shouldn't be used alone to assess long-term drug use.