June 2014 in “Toxicologie analytique et clinique/Annales de toxicologie analytique” Older age increases positive hair alcohol test results, and chest hair is a good alternative for testing; season affects results, with higher levels in winter.
7 citations
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January 2002 in “Biological Trace Element Research” Children with pituitary dwarfism have higher zinc and copper, lower manganese, and similar iron levels in hair compared to normal children.
December 2023 in “Frontiers in Medicine” Hair samples can reliably monitor tacrolimus levels in kidney transplant patients.
21 citations
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July 2016 in “Gynecological Endocrinology” Obese and non-obese women with PCOS have higher heart risk markers, especially if they are obese.
March 2023 in “World Journal of Biology Pharmacy and Health Sciences” Low levels of zinc and ferritin may be linked to the severity of alopecia areata in Iraqi patients.
January 2001 in “대한피부과학회지” Hormone levels in women with androgenetic alopecia are similar to those without the condition.
October 2023 in “Acta dermato-venereologica (Print)” People with severe hair loss have lower zinc levels in their blood.
October 2020 in “The American Journal of Gastroenterology” Early diagnosis and treatment of hereditary hemochromatosis can prevent serious complications.
15 citations
,
July 2012 in “Biological trace element research” Higher hair calcium to magnesium ratios and lower chromium levels in hair may indicate insulin resistance in Korean men.
29 citations
,
September 1983 in “British Journal of Dermatology” Men with hair loss have lower SHBG and higher saliva testosterone levels, suggesting increased androgen activity.
1 citations
,
January 2023 in “Journal of Obstetrics and Gynaecology” High DHEA and short cervical length in women with PCOS and recurrent miscarriages may harm pregnancy outcomes.
2 citations
,
January 2013 in “Türkiye klinikleri tıp bilimleri dergisi” The study suggests using a score of 11 on the mFG scale to diagnose hirsutism in Turkish women, with adjustments for age, skin type, and family history.
September 2024 in “Journal of the American Academy of Dermatology” Dermatologists can detect smaller hair density changes than previously thought.
1 citations
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November 2019 in “Trends in Urology & Men s Health” Haematospermia is usually harmless but needs careful checking to ease anxiety and find any serious causes.
October 2022 in “Egyptian Journal of Health Care” Female nursing students with iron deficiency anemia have poor knowledge and practices regarding iron intake, needing better health education and physical monitoring.
9 citations
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October 2012 in “PubMed” Most women in the study lost hair due to stress, fever, childbirth, surgery, or thyroid issues, with low hemoglobin levels also common.
9 citations
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January 2013 Alopecia areata patients have lower zinc, copper, and selenium levels than healthy people.
2 citations
,
September 2021 Patients with alopecia areata may have lower vitamin D levels than healthy people.
26 citations
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October 2011 in “Biological trace element research” Low copper levels might cause premature graying of hair.
24 citations
,
January 2019 in “Hormone Research in Paediatrics” Hair cortisol levels in children are influenced by puberty, age, gender, and body mass index.
22 citations
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November 2010 in “Toxicological & Environmental Chemistry Reviews” Smokers and people with dyed hair have higher levels of certain metals in their hair.
A high neutrophil-to-lymphocyte ratio may predict poor response to hair loss treatment.
August 2025 in “DS Reviews of Research in Life Sciences” Women with PCOS have higher levels of DHEA, IL-6, and TNF-α.
April 2025 in “Egyptian Journal of Medical Research” People with Telogen Effluvium have lower vitamin D levels.
March 2023 in “Zenodo (CERN European Organization for Nuclear Research)” Low levels of zinc and ferritin may worsen alopecia areata.
January 2025 in “The Journal of Dermatology” Patients prefer the higher 50 mg dose of ritlecitinib for better hair regrowth despite higher risks.
2 citations
,
January 2011 Zinc deficiency may contribute to alopecia areata and vitiligo.
September 2018 in “BAUST Journal” 4 citations
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June 1980 in “American Journal of Clinical Nutrition” Malnutrition can change hair color due to altered copper and zinc levels.
1 citations
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December 2022 in “Clinical, Cosmetic and Investigational Dermatology” Midscalp hair density and terminal hair percentage are good indicators of female pattern hair loss severity.