94 citations,
April 2018 in “Nature Genetics” New genetic locations explain much of hair color variation in Europeans.
12 citations,
December 2020 in “Comprehensive psychoneuroendocrinology” Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
7 citations,
January 2019 in “Journal of Analytical Toxicology” Tramadol and THC-COOH can be detected in hair for several months after stopping use.
3 citations,
August 2022 in “Molecules/Molecules online/Molecules annual” A new strain of bacteria from the human skin can help prevent hair loss.
1 citations,
November 2021 in “American Journal of Clinical Pathology” The conclusion is that certain physical signs in the body can indicate past acute and chronic stress, which may help in child abuse investigations.
March 2022 in “International Journal of Trichology” Smoking may worsen hair loss, but more research is needed.
5 citations,
January 2020 in “Journal of Dermatology and Dermatologic Surgery” Caffeine may benefit skin and hair health but more research is needed to confirm its effectiveness in dermatology.
12 citations,
July 2016 in “Forensic science international” The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.
36 citations,
September 2015 in “Forensic Science International: Genetics” Certain DNA variants can predict straight hair in Europeans but are not highly specific.
10 citations,
May 2018 in “Forensic Science International” Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.
April 2022 in “Indian Journal of Forensic Medicine & Toxicology” PSA can help diagnose high androgen levels in women.
December 2023 in “Forensic science international. Genetics” The RapidHIT ID system can effectively get DNA profiles from hair roots with enough cells.
53 citations,
November 1997 in “Journal of Forensic Sciences” Darker hair in guinea pigs holds more codeine than lighter hair.
501 citations,
October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
29 citations,
January 2009 in “International Journal of Trichology” Finasteride for hair loss may cause gynecomastia; doctors should inform patients.
2 citations,
February 2022 in “BMJ” Emollients can make fabrics more flammable, so take safety precautions.
441 citations,
May 2008 in “British Journal of Pharmacology” Anabolic steroids can build muscle and strength but have risks and need more research on their clinical benefits and side effects.
15 citations,
November 2015 in “Journal of Cosmetic Dermatology” Botanicals like green tea extract show potential for hair growth, but more research is needed.
11 citations,
January 1987 in “Electrophoresis” Keratin proteins are consistent across different hair types from the same person.
3 citations,
February 2018 in “Australian Veterinary Journal” Veterinarians could test positive for ketamine from work exposure, not just substance abuse.
1 citations,
December 2018 in “IntechOpen eBooks” Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.
February 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” Tandem repeats significantly influence hair color, especially darker shades, across different ancestries.
54 citations,
September 2019 in “Journal of the European Academy of Dermatology and Venereology” Tofacitinib is somewhat effective for alopecia areata, but more research is needed on its safety and long-term effects.
37 citations,
January 2019 in “Food science & nutrition” Bergamot may improve heart health, skin conditions, and mood, but more research is needed to confirm these benefits.
15 citations,
January 1971 in “British Journal of Dermatology” Hair can indicate early signs of metabolic disorders, with issues like protein deficiency stopping hair growth.
14 citations,
September 2015 in “Ophthalmic plastic and reconstructive surgery” Surgical removal of abnormal fat pads fixed the woman's eyelid issue caused by likely silicone injections.
8 citations,
September 2019 in “Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity” A woman with anorexia nervosa improved after treatment for pellagra, reminding doctors to check for this deficiency in patients with eating disorders.
8 citations,
August 2018 in “Drug testing and analysis” EtG levels in hair decrease significantly after one month of alcohol abstinence.
5 citations,
June 2016 in “Twin research and human genetics” Hair diameter and curvature are mostly determined by genetics.
1 citations,
November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Quantifying hair shape is better than using racial categories for understanding hair characteristics.