3 citations
,
February 2015 in “Mechanisms of development” Hormones and stretching both needed for nipple area skin growth in mice.
August 2018 in “Journal of The American Academy of Dermatology” Aging significantly affects the hair and scalp of nonbalding Caucasian women, with changes that differ from male pattern baldness.
37 citations
,
June 2011 in “Journal of The American Academy of Dermatology” Loss of sebaceous glands and inflammation may contribute to the development of scarring alopecia.
1 citations
,
July 2024 in “Indian Journal of Case Reports” GAPO syndrome causes growth issues, hair loss, missing teeth, and vision problems.
62 citations
,
November 2009 in “Aging Cell” Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.
September 2018 in “Dermatologic Surgery”
December 2022 in “International Journal of Women's Dermatology” The Sinclair Shedding Scale is effective for diagnosing Alopecia Areata Incognita and monitoring treatment success.
31 citations
,
December 2010 in “Journal of the American Academy of Dermatology” Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
September 2023 in “Ain Shams medical journal” 31% of female high school students in Minia have hair loss from tight hairstyles, which can become permanent if not treated early.
12 citations
,
February 2006 in “Lipids” Hair texture changes with age due to varying levels of lipids.
33 citations
,
January 2018 in “The International Journal of Developmental Biology” Cell aging can be both good and bad for tissue repair.
1 citations
,
June 2007 in “Journal of Oral and Maxillofacial Surgery” A woman experienced temporary hair loss after jaw surgery due to the stress of the operation.
15 citations
,
September 2018 in “Medicine” Childhood ptosis can vary from a minor cosmetic issue to a serious condition and may signal other health problems.
Smad4 is crucial for muscle repair, especially in aging, by promoting cell growth over differentiation.
55 citations
,
May 1970 in “New England Journal of Medicine” Scurvy may cause symptoms similar to Sjögren's syndrome, which disappear with vitamin C.
July 2024 in “Journal of Investigative Dermatology” Topical melatonin may reduce skin aging by inhibiting certain cellular pathways.
October 2019 in “Our Dermatology Online” Androgenetic alopecia significantly lowers self-esteem and affects social interactions.
9 citations
,
June 2014 in “British Journal of Dermatology” The study found that balding scalps have more thin hairs and larger oil glands, which might contribute to skin conditions related to hair loss.
4 citations
,
January 2015 in “Indian Journal of Dermatology” 15.33% of young Caucasian men have severe hair loss, with higher rates in Jewish men and links to age, BMI, and possibly metabolic syndrome.
As people age, certain enzymes in scalp glands decrease, affecting hair health.
July 2016 in “Journal of Cutaneous Medicine and Surgery” Receding hairlines in men are uneven, with the right side larger than the left.
1 citations
,
January 2025 in “Aging and Disease” Lengthening telomeres may reverse aging and extend lifespan.
April 2026 in “Inflammation and Regeneration” AKR1C enzymes in scalp glands decrease with age, possibly affecting hair loss.
November 2017 in “Dermatologic Therapy” A new topical solution safely reduces hair shedding by 38% on average by tightening a muscle in the scalp.
6 citations
,
April 2022 in “Frontiers in cell and developmental biology” The research identified key proteins and genes that may influence wool bending in goats.
15 citations
,
October 2006 in “Journal of the American Academy of Dermatology” Liquid nitrogen spray caused a temporary, harmless swelling under the skin in an elderly woman.
November 2025 in “Journal of Investigative Dermatology” Mesenchymal stiffness affects sweat gland cell development.
3 citations
,
August 2006 in “Facial Plastic Surgery Clinics of North America” Newer midface lift techniques are safer, more reliable, and have quicker recovery times.
6 citations
,
December 2011 in “Clinical and Experimental Dermatology” A woman developed rare, unexplained curly hair on her scalp and eyelashes.
A runner developed tangled armpit hairs from shirt friction, preventable by shaving or wearing smooth shirts.