44 citations,
November 2007 in “Journal of toxicology and environmental health. Part B, Critical reviews” Copper and zinc in hair can indicate health conditions.
January 2023 in “Singapore Medical Journal” Men with androgenetic alopecia have unique metabolomic patterns that could help develop targeted treatments.
100 citations,
December 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Researchers mapped and categorized specific keratin-associated protein genes on human chromosome 21q22.1.
January 2024 in “Ageing & longevity” Good nutrition and essential trace elements like zinc, selenium, and iron are important for a strong immune system and reducing COVID-19 severity.
9 citations,
January 2014 in “Journal of analytical & bioanalytical techniques” The study did not conclude whether hair can reliably indicate kidney stones, cholelithiasis, hypertension, or diabetes.
15 citations,
October 2004 in “Colloids and surfaces. B, Biointerfaces” Holes in mature hair are likely caused by the removal of substances during hair care.
August 2018 in “Journal of Investigative Dermatology” Humans evolved to have less hair and more sweat glands than chimpanzees and macaques.
February 2025 in “Animals” Understanding proteins in skin structures like claws and hair is crucial for future research.
2 citations,
January 2006 in “International Journal of Cosmetic Science” The study found that certain conditioning compounds can penetrate hair and potentially improve its resistance to damage.
January 1997 in “Elsevier eBooks” Hair and nails are skin parts that develop early and serve protective and functional roles.
9 citations,
January 1989 in “Sen'i Gakkaishi” Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.
11 citations,
July 2021 in “Sustainability” Concrete made from animal bones and human hair is stronger and more environmentally friendly than traditional concrete.
research Hair
November 2005 in “CRC Press eBooks” Hair and skin are closely linked, and hair products can affect skin health.
63 citations,
August 1996 in “Forensic Science International” Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
1 citations,
July 2021 in “Small ruminant research” Vitamin E, alone or with yeast, helped reduce arsenic poisoning effects in young goats.
17 citations,
June 2001 in “Journal of the National Cancer Institute” A specific hair diffraction pattern may indicate breast cancer if tested with the correct method.
33 citations,
June 1995 in “International journal of legal medicine” Environmental factors can greatly reduce drug levels in hair.
51 citations,
January 2012 in “Annals of dermatology/Annals of Dermatology” A boy with alopecia regrew hair using a vitamin D cream after other treatments failed.
research Hair
1 citations,
April 2023 in “Elsevier eBooks” Hair analysis can detect drug use but is costly and interpretation is complex.
38 citations,
July 2004 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Reptilian scales, feathers, and hairs evolved from changes in skin cell interactions.
4 citations,
March 2016 in “Small ruminant research” Vicuña wool's quality is due to a high density of fine secondary hair follicles, and their skin glands may be used for communication.
11 citations,
October 2020 in “General and comparative endocrinology” Male C57BL/6 mice show age-related fluctuations in certain hormones and their ratios in both blood and hair.
1 citations,
January 2016 in “Georg Thieme Verlag eBooks” The document concludes that ideal facial proportions are guided by specific measurements and symmetry to enhance beauty, but individual characteristics must be considered.
research Hair
1 citations,
January 2016 in “Springer briefs in molecular science” The document suggests using safer, plant-based hair products instead of harmful synthetic ones.
134 citations,
January 2011 in “Development” Adam10 enzyme is crucial for healthy skin and proper Notch signaling.
13 citations,
January 2019 in “Journal of the American Academy of Dermatology” Most people using biotin don't see skin improvements, and it may affect lab tests, so doctors shouldn't suggest it without confirming a deficiency.
98 citations,
June 2001 in “Journal of biological chemistry/The Journal of biological chemistry” A cluster of sulfur-rich hair protein genes was found on chromosome 17.
7 citations,
November 2022 in “Toxics” The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.
303 citations,
August 1971 in “The American Journal of Medicine” Melanocytes are destroyed by factors needed for melanin production, causing vitiligo and gray hair.
November 2015 in “Springer eBooks” Hair loss treated with minoxidil, finasteride, laser/light, hair transplant, and scalp prostheses; more research needed for skin of color.