June 2014 in “Toxicologie analytique et clinique/Annales de toxicologie analytique” Older age increases positive hair alcohol test results, and chest hair is a good alternative for testing; season affects results, with higher levels in winter.
4 citations
,
January 2021 in “Skin appendage disorders” Washing hair daily is better and preferred, with no negative effects.
33 citations
,
January 2017 in “Psychoneuroendocrinology” Hair dyeing and washing frequency do not affect hair cortisol levels.
122 citations
,
October 2010 in “Clinica Chimica Acta” Washing hair with water or shampoo lowers cortisol levels in hair.
1 citations
,
December 2011 in “Journal of the American Academy of Dermatology” Using hair oil/grease may be linked to dandruff in African American girls.
1 citations
,
September 2016 in “Brain Behavior and Immunity” Hair cortisol levels can indicate stress and are affected by washing frequency, not cosmetic treatments.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
157 citations
,
June 2015 in “Psychoneuroendocrinology” Hair cortisol and cortisone levels increase with age, are higher in diabetics, vary by gender, decrease with frequent hair washing, and are lower in winter.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
6 citations
,
February 1974 in “The BMJ” The document concludes that scalp disorders can be treated with hair washing, specific shampoos, medications, and sometimes surgery or hair transplants, but hereditary baldness is untreatable.
21 citations
,
January 2016 in “NeuroImmunoModulation” Hair cortisol levels can indicate stress over the past three months.
7 citations
,
October 2016 in “Dermatologic Therapy” About 40% of women without hair loss and 60% with hair loss experience a lot of hair shedding, especially those under 50 with long hair.
59 citations
,
August 2010 in “Journal of The American Academy of Dermatology” Certain hairstyles and less hair oil use in African American girls can lead to scalp conditions like traction alopecia and seborrheic dermatitis.
25 citations
,
August 2015 in “Journal of cosmetic dermatology” African American women report more hair issues and use different hair care practices than Caucasian women, and have different hair and scalp characteristics.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
September 2019 in “University of the Arts London Research Online (University of the Arts London)” Plant oils and polymers can help protect African hair from damage during styling.
September 2023 in “Ukraïnsʹkij žurnal Perinatologìâ ì pedìatrìâ” Quick action and prevention are crucial to avoid severe complications from tourniquet syndrome in children.
1 citations
,
November 2022 in “F1000Research” The skin conditions of Iraqi women changed during the COVID-19 pandemic, with more hair loss and skin irritation but fewer contagious skin infections.
1 citations
,
November 2021 in “F1000Research” The COVID-19 pandemic led to more hair loss and skin irritation among Iraqi women, with some skin conditions increasing and others decreasing.
COVID-19 may be linked to hair loss called Telogen Effluvium, affecting quality of life and self-esteem.
May 2022 in “F1000Research” During the COVID-19 pandemic, Iraqi women experienced more hair loss and certain skin conditions, while contagious skin infections decreased.
During COVID-19, Iraqi women saw more hair loss and skin issues like acne due to stress, masks, and hygiene habits.
1 citations
,
December 2021 in “International journal of research in dermatology” Dermatologists should learn more about shampoos to better treat hair and scalp issues.
2 citations
,
December 2021 in “Scientific reports” Scalp hair sweating is a significant predictor of hair cortisol levels.
3 citations
,
January 2018 in “İstanbul Kuzey Klinikleri” Hair loss was found in 37.4% of surveyed rural high-school students in Eskisehir, Turkey, affecting their quality of life, especially in general health and mental well-being.
January 2022 in “Biomedical Reports” Inaudible sound at 30 kHz can boost hair growth and decrease hair loss by promoting cell growth and reducing cell death in hair follicles.
84 citations
,
February 2013 in “Clinica chimica acta” Hair mineral analysis might help diagnose diseases early, but standard methods are needed.
11 citations
,
December 2014 in “The American journal of pathology” A gene deletion in mice causes weak protein, immune issues, hair loss, airway problems, and wasting disease.
2 citations
,
July 2008 in “Hair transplant forum international” MRSA infections can occur in hair transplant surgeries, so it's important to test for it before treatment, keep everything clean, and follow treatment based on test results.
68 citations
,
May 2013 in “The American journal of medicine” Traditional Chinese medicines with heavy metals can cause severe poisoning.