Dark hair with a red beard likely evolved for camouflage, not attraction.
58 citations
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December 2018 in “Nature Communications” Male pattern baldness is mostly inherited, involves many genes, and is linked to other traits like early puberty and strong bones.
41 citations
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June 2006 in “Journal of Investigative Dermatology” Beard and scalp hair cells have different gene expressions, which may affect beard growth characteristics.
9 citations
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February 1984 in “Zentralblatt für Veterinärmedizin Reihe A” Biotin is essential for healthy skin and claws in pigs.
5 citations
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September 1991 in “Veterinary dermatology” Pygmy goats with seborrhoeic dermatitis showed skin symptoms and temporary improvement with corticosteroids, but the cause and inheritance of the disease remain unknown.
18 citations
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April 1986 in “International Journal of Cosmetic Science” Minoxidil promotes hair regrowth in early baldness stages and prevents baldness in non-bald scalps.
January 2019 in “Journal of Drug Delivery and Therapeutics” Changing six essential health practices can help prevent excessive hair shedding.
December 2020 in “Pathology” A man's skin condition and poor diet led to a scurvy diagnosis.
16 citations
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April 2012 in “Journal of mammalogy” Young female Australian fur seals are losing hair due to low tyrosine and zinc levels and high pollution exposure.
July 2023 in “Veterinary pathology” White-tailed deer can get a hair loss condition that might make them more vulnerable to environmental threats.
January 2008 in “대한피부과학회지” Micropigmentation is a safe procedure that effectively improves the appearance of scars on the scalp and eyebrows, with most patients showing excellent or good results.
22 citations
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July 2012 in “International Journal of Trichology” Miniaturized hairs stay connected to muscle in alopecia areata, allowing possible regrowth, but not in androgenetic alopecia.
2 citations
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August 2025 in “JAAD reviews.” Frontal fibrosing alopecia significantly affects men, often causing hair loss in eyebrows, beard, and sideburns.
January 2014 in “生命科学(ISSN1934-7391)” A certain gene variation can affect protein production and is linked to male pattern baldness.
September 2023 in “Bulletin of the Medical Institute of Continuing Education” Early and accurate treatment of Lichen Planopilaris is crucial to prevent permanent hair loss in men.
January 2007 in “Pizhūhish va sāzandigī” Hairless guinea pigs are useful for research in allergies, skin tests, and diseases.
December 2011 in “Korean journal of veterinary research” A Miniature Pinscher dog with hair loss and scaling was diagnosed with pattern alopecia and improved with melatonin treatment.
4 citations
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April 2019 in “JAAD Case Reports” DPR can cause skin, hair, and nail issues, sometimes appearing later in life.
January 1996 in “Springer eBooks”
June 2017 in “Journal of The American Academy of Dermatology” Women in Australia report different signs of facial aging compared to women in the US, UK, and Canada; men with Lichen planopilaris often have hormonal abnormalities and thyroid disease.
July 2023 in “Clinical, cosmetic and investigational dermatology” Plica neuropathica can be a sign of schizophrenia and improves with antipsychotic treatment.
3 citations
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January 2016 in “Dermatology online journal” Some people with lichen planus pigmentosus might later develop frontal fibrosing alopecia.
5 citations
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December 1964 in “Australasian journal of dermatology” Congenital atrichia is a rare condition where children are born without hair, and treatment is often ineffective.
3 citations
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March 2015 in “Journal of the European Academy of Dermatology and Venereology” Some people with primary cicatricial alopecia also have inflammatory bowel disease, suggesting a possible connection.
47 citations
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November 2000 in “Archives of dermatology” Pulsed infrared laser can effectively reduce symptoms of pseudofolliculitis barbae.
9 citations
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November 2015 in “JAMA dermatology” A 91-year-old woman's hair turned black in one spot, with skin changes underneath.
September 2022 in “Journal of Investigative Dermatology” Patient-reported outcomes better reflect the quality of life impact of alopecia areata than traditional severity scores.
2 citations
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September 2021 in “JAAD case reports” A man with a weakened immune system was diagnosed with a rare skin condition called trichodysplasia spinulosa using skin examination techniques.
October 2024 in “Dermatology Practical & Conceptual” Trichoscopy effectively diagnoses eyebrow hair loss in certain conditions.