47 citations,
July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
42 citations,
April 2008 in “Acta materialia” Different ethnicities and treatments affect human hair strength and structure.
25 citations,
February 2007 in “Forensic science international” Different hair cleaning methods caused varying levels of damage to the hair's outer layer.
3 citations,
December 2013 in “Journal of Dermatology” Scanning electron microscopy revealed four distinct hair root shapes in alopecia areata, suggesting a less invasive diagnostic method.
April 2023 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Direct heat perms cause more damage to hair than softening heat perms.
December 2022 in “Himi, himijn tehnologijn hùrèèlèngijn èrdèm šinžilgèènij bùtèèl” Hair products with copper and zinc enriched yeast made hair thicker and denser.
Men with benign prostate hyperplasia have more meibomian gland loss and tear film problems.
February 2019 in “PubMed” Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
December 2023 in “International Journal of Medical Arts” Transplanted hair follicles show significant changes after FUE, needing more research.
September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
8 citations,
December 2003 in “Materials Research-ibero-american Journal of Materials” Polyquaternium 7® builds up on hair, improving its look and feel, and AFM is good for measuring these changes.
February 2024 in “Medicina” AFM can diagnose hair disorders by revealing detailed hair surface changes.
4 citations,
August 2023 in “Nature Communications” Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.
6 citations,
January 2017 in “Journal of toxicologic pathology” Rabbit skin with active hair growth shows thicker, redder areas due to larger, more numerous hair follicles and increased blood vessels.
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.
8 citations,
February 2017 in “Archives of Dermatological Research” Intense pulsed light treatment effectively reduces underarm hair by making hair follicles smaller and extending their resting phase.
1 citations,
September 2019 in “Journal of surgery and medicine” People with polycystic ovary syndrome have worse meibomian gland and ocular surface conditions.
September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Hair changes could indicate neurological diseases and help monitor treatment.
25 citations,
May 2019 in “Heliyon” Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.
1 citations,
June 2008 in “The Journal of Urology” Dihydrotestosterone gel before hypospadias surgery led to less scarring but raised concerns about potential psychological effects and skin changes.
1 citations,
March 2019 in “Actas Dermo-Sifiliográficas” New cancer treatments are less harmful to hair but can still cause hair loss, color, shape, and growth changes.
90 citations,
October 1998 in “Animal Reproduction Science” Mouflon rams mature gradually with changes in body, horns, and hormones linked to age and seasons, reaching full sexual maturity well after puberty.
81 citations,
December 2007 in “Acta materialia” AFM helped show how hair changes under tension and the effects of damage and conditioner.
11 citations,
January 2018 in “Asian Journal of Andrology” Dutasteride caused more penile tissue changes than finasteride, possibly increasing erectile dysfunction risk.
3 citations,
October 2006 in “Journal of dermatology” X-ray microscopy can non-invasively show hair structure changes after treatments, but it's less detailed than TEM and needs improvement.
September 2024 in “Skin Research and Technology” AFM can help diagnose lichen planopilaris by identifying specific hair structure changes.
54 citations,
July 1967 in “Science” Decomposed tritiated thymidine is less accurate for DNA tracing, and hair changes can indicate malnutrition.
236 citations,
July 2001 in “Trends in Molecular Medicine” Future hair loss treatments should aim to extend hair growth, reactivate resting follicles, reverse shrinkage, and possibly create new follicles, with gene therapy showing promise.
4 citations,
August 1971 in “Pediatric clinics of North America/The Pediatric clinics of North America” Childhood hair and scalp disorders can be managed with treatments like cortisone and corticosteroids.
October 2023 in “Toxicology and Applied Pharmacology” Finasteride is more harmful to male reproductive health than minoxidil.