13 citations
,
January 2015 in “International Journal of Trichology” Higher lead and cadmium, and lower zinc and iron levels in the blood might be linked to chronic hair loss in women.
7 citations
,
February 2016 in “Arab journal of urology” People with early hair loss may have a higher chance of enlarged prostate and metabolic syndrome, so they should be checked for urinary and metabolic issues.
53 citations
,
December 2015 in “JAMA Dermatology” Women with PCOS often have more body hair, acne, and skin darkening, and these signs are linked to metabolic issues like insulin resistance and high cholesterol.
21 citations
,
May 2017 in “International Journal of Dermatology” Overweight smokers have worse hair loss.
15 citations
,
August 2017 in “Scientific Reports” Young men with early hair loss have slightly worse blood sugar and fat levels, suggesting possible health risks and need for monitoring.
2 citations
,
November 2024 in “Clinical Cosmetic and Investigational Dermatology” Higher BMI may increase the risk of psoriasis and some other skin diseases.
January 2021 in “American Journal of Applied Sciences” Cut hair can help link suspects to crime scenes.
33 citations
,
January 2017 in “Conservation physiology” Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.
21 citations
,
September 2013 in “Journal of circadian rhythms” Intense exercise at night can delay the body's internal clock gene expression by 2 to 4 hours.
5 citations
,
January 2023 in “International Journal of Molecular Sciences” Hair follicles could be used to noninvasively monitor our body's internal clock and help identify risks for related diseases.
60 citations
,
June 2019 in “Ageing Research Reviews” Fat from the body can help improve hair growth and scars when used in skin treatments.
49 citations
,
April 2016 in “International journal of molecular sciences” Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.
29 citations
,
March 2012 in “Stem Cell Research & Therapy” Some stem cells in the body rarely divide, which could help create better treatments for diseases and aging.
7 citations
,
October 2020 in “INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH” Stress worsens symptoms and body changes in women with PCOS, especially during COVID-19.
92 citations
,
September 2015 in “Journal of Lipid Research” Skin fat helps with body temperature control and has other active roles in health.
January 2026 in “Phaidra - Repository of the University of Veterinary Medicine, Vienna” Hair cortisol levels in wolves reflect stress and vary by season and body region.
21 citations
,
December 2012 in “Biological Trace Element Research” Higher hair levels of calcium and magnesium are linked to higher body weight, while lower levels are linked to worse metabolic health.
January 2024 in “Journal of the Endocrine Society” The research found that measuring androgens in urine can give extra information about body metabolism and is linked to androgen levels in the blood, especially in young girls.
11 citations
,
May 2009 in “Medical Hypotheses” Male pattern baldness is an unintended side effect of the body's use of androgens for muscle growth, especially in those genetically prone to it.
November 2022 in “SAS journal of medicine” There's no link between low iron levels and the hair loss condition, alopecia areata.
40 citations
,
August 2018 in “Skin appendage disorders” Some alternative treatments for hair loss might work, but more research is needed.
140 citations
,
December 2017 in “Journal of Controlled Release” Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.
March 2021 in “Journal of Pakistan Association of Dermatologists” In Pakistan, men with more severe hair loss often have a higher BMI.
10 citations
,
January 2012 in “Journal of Biological Macromolecules” Keratin film can effectively replace human hair for testing hair damage.
6 citations
,
January 1971 in “Pathology” Children's hair needs only a little iron for normal growth, regardless of their body's iron levels.
January 2025 in “Animal Science Journal” Golden takin's hair structure is adapted to maintain body temperature in harsh winters.
August 2019 in “Journal of archaeological science: Reports/Journal of archaeological science: reports” Ancient hair can preserve hormones, revealing health and fertility insights.
April 2020 in “Journal of animal research” Canine hair follicles have stem cells in the bulge region.
9 citations
,
November 2009 in “Recent Patents on Drug Delivery & Formulation” Microemulsions could improve how drugs are delivered and absorbed in the body.
4 citations
,
December 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Human scalp hair follicles can produce hormones and have a system similar to a brain-body communication network.