8 citations
,
September 2014 in “Journal of X-Ray Science and Technology” High calcium levels in hair may indicate early breast cancer.
217 citations
,
July 2009 in “Experimental and Clinical Endocrinology & Diabetes” Hair analysis can track past cortisol levels in Cushing's Syndrome patients.
1 citations
,
January 2021 in “International journal of pharmaceutical research” Low levels of ferritin, TSH, and certain vitamins are linked to hair loss in women of different ages.
September 2021 in “Journal of advances in medicine and medical research” Low Vitamin D levels are linked to female hair loss.
1 citations
,
March 2020 in “Current Science” Most people in the surveyed area experience hair loss, but they are not aware of the role of diet, iron, hormones, genetics, and possibly water quality in causing it.
50 citations
,
June 2014 in “Experimental and Clinical Endocrinology & Diabetes” Hair hormone levels can indicate obesity-related changes and are useful for research and clinical practice.
Hair hormone levels can indicate stress after a medically indicated abortion.
November 2025 in “Open Access CRIS of the University of Bern” Androgen levels are more linked to body size in boys than girls.
November 2025 in “European Journal of Endocrinology” Hair steroid profiling is a feasible, non-invasive alternative to serum analysis for assessing hormone levels and metabolism.
176 citations
,
August 2000 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Hormone treatments in transsexual individuals reduce hair growth and oil production in male-to-females and increase them in female-to-males.
14 citations
,
December 2021 in “International journal of molecular sciences” Growth hormone levels affect hair growth and loss, with too much causing excess hair and too little leading to hair loss.
January 2023 in “Radiation and Risk Bulletin of the National Radiation and Epidemiological Registry” Cows can safely graze after a nuclear incident if iodine exposure is managed, as doses below 30 Gy don't harm them long-term.
25 citations
,
July 2019 in “Experimental Dermatology” Cholesterol balance is important for hair health, and problems with it can lead to hair loss conditions.
July 2019 in “Acta Scientiae Veterinariae” Removing a testicular tumor in a dog reduced its aggressive behavior and skin problems.
Hair can show daily calcium changes, linked to body calcium levels and influenced by hormones, and can help assess calcium metabolism issues.
February 2019 in “Psychoneuroendocrinology” Hair samples can reliably show average long-term hormone levels in young women.
7 citations
,
October 2017 in “The Prostate” Baldness in men with prostate cancer is linked to higher levels of certain sex hormones, but chest hair density is not.
29 citations
,
February 1987 in “General and comparative endocrinology” Thyroid and gonadal hormones control seasonal hair growth and molting in male European badgers.
3 citations
,
January 1988 in “PubMed” High prolactin levels can cause skin and hair symptoms similar to those caused by hormone imbalances.
2 citations
,
January 2018 in “Biology and medicine” High testosterone levels in 20% of the women studied may indicate PCOS, while 80% had low levels with potential health impacts.
1 citations
,
January 2021 in “Acta dermatovenerologica Alpina, Pannonica et Adriatica (Tiskana izd.)” High prolactin levels might be linked to hair loss in autoimmune thyroid disease, but more research is needed.
1 citations
,
January 1997 in “Dermatology” A woman lost her hair from stress after a bee attack and her sister's death.
August 2019 in “Research Square (Research Square)” Red LED light improves the quality of Angora rabbit wool by promoting hair growth.
42 citations
,
July 1982 in “PubMed” Loestrin effectively normalizes testosterone levels and improves PCOS symptoms with minimal side effects.
35 citations
,
January 2014 in “BioMed Research International” Female pattern hair loss involves hormonal factors, genetics, and may be linked to low ferritin levels.
April 2025 in “La Prensa Medica” Oral contraceptives help treat acne and hair issues by balancing hormones but need careful use due to possible side effects.
March 2025 in “American journal of biochemistry & biotechnology/American journal of biochemistry and biotechnology” Higher levels of certain hormones and lower levels of minerals may contribute to hair loss.
Early treatment is important for better hair regrowth in elderly women with hair loss.
October 2020 in “Clinical and Experimental Dermatology” Hair loss improved after removing pituitary tumor.
3 citations
,
October 2021 in “Clinica Chimica Acta” Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.