November 2025 in “Skin Health and Disease” Autosomal recessive woolly hair is rare and involves tightly coiled hair without other health issues.
September 1973 in “Primates” 2 citations
,
January 1987 in “PubMed” Woolly hair syndrome is a genetic condition causing frizzy, fragile hair.
February 2025 in “Science Advances” Wnt signaling helps regenerate hair follicles by affecting how skin cells sense and respond to mechanical forces.
1 citations
,
January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
The white wax scale insect's genome shows that complete metamorphosis evolved earlier than thought and highlights differences in male and female development.
10 citations
,
January 1971 in “The American midland naturalist” A simple method can show hair's surface pattern.
6 citations
,
October 2020 in “Endocrine journal” A patient with Werner syndrome showed a range of aging-like symptoms and metabolic issues, underscoring the need for early detection and treatment.
9 citations
,
November 2000 in “Journal of the American Academy of Dermatology” A woman with a rare type of dermatomyositis improved with low-dose prednisone and methotrexate.
January 1961 in “The Journal of Anthropological Society of Nippon” Hair form in mixed-blood families varies due to hereditary twist-knots and pigment formation.
November 2025 in “Pharmacological Research” Plant-derived nanoparticles from Polygoni Multiflori Radix promote hair growth better than Minoxidil by affecting androgen pathways.
5 citations
,
January 1990 in “Journal of Society of Cosmetic Chemists of Japan” Permanent wave lotion can extract proteins from hair, especially when pH is higher, and repeated treatments or bleaching can damage hair.
29 citations
,
February 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Loss of Fz6 disrupts hair follicle and associated structures' orientation.
4 citations
,
May 2020 in “Cureus” A new genetic mutation causing Werner's syndrome was found in an Indian man.
40 citations
,
February 1990 in “Journal of The American Academy of Dermatology” A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
15 citations
,
January 2018 in “Annals of Dermatology” Wigs significantly improve the well-being of people with severe hair loss.
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
578 citations
,
April 1993 in “Cell” TGFα gene mutation in mice causes abnormal skin, wavy hair, curly whiskers, and sometimes eye inflammation.
17 citations
,
April 1990 in “Environmental Research” Methylmercury accumulates in mouse hair during growth, then decreases when growth stops.
9 citations
,
November 2021 in “Current Opinion in Genetics & Development” Wounds can cause new hair growth in adult mice, influenced by Wnt signaling.
Wavy sinus hairs in cats are linked to feline leukemia virus infection.
January 2012 in “Jounal of The Korean Society of cosmetology” Applying conditioner mid-treatment reduces hair damage during perms.
53 citations
,
October 2003 in “Genetics” The mK6irs1/Krt2-6g gene likely causes wavy hair in mice.
50 citations
,
October 1918 in “The journal of experimental zoology” Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.
2 citations
,
January 2025 in “Veterinary Dermatology” Male Pomeranians with woolly coats are more likely to develop alopecia X.
December 2025 in “Frontiers in Medicine” ARWH is a rare hair disorder with no cure, but potential treatments include minoxidil and other therapies.
37 citations
,
January 2010 in “Journal of Clinical Investigation” N-WASP is essential for normal hair growth in mice.
Dark hair with a red beard likely evolved for camouflage, not attraction.