November 2023 in “Frontiers in cell and developmental biology” Hair aging is caused by stress, hormones, inflammation, and DNA damage affecting hair growth and color.
July 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Chitosan slows root hair growth and causes a buildup of callose at low concentrations, but at high concentrations, it only inhibits growth without callose buildup.
October 2021 in “Turkderm” Hormonal imbalances, not insulin resistance or dyslipidemia, may be more important in causing acne in women over 25.
Wildebeest stress and hormone levels are influenced by food availability, human presence, and reproductive cycles.
September 2016 in “Elsevier eBooks” Different types of hair loss in dogs and cats have various causes and treatments, with outcomes ranging from good to uncertain.
January 2015 in “Indian Journal of Medical Biochemistry” Men with early balding should be checked for metabolic syndrome, as there's a link between the two.
November 2014 in “John Wiley & Sons, Ltd eBooks” Eating high-glycemic and dairy foods can increase hormones that may cause acne and other health issues.
December 2025 in “GeroScience” Genetics, epigenetics, and lifestyle all influence facial skin aging.
150 citations
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April 2013 in “Dermato-endocrinology” Estrogen therapy can reduce skin aging but has cancer risks.
99 citations
,
June 2005 in “Journal of Cosmetic Dermatology” Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.
51 citations
,
November 2005 in “Journal of Medical Primatology” Alopecia in captive rhesus macaques is affected by season, sex, age, housing, and stress, with complex links between stress hormones and hair loss.
34 citations
,
March 2020 in “BMC plant biology” Graphene oxide and indole-3-acetic acid together inhibit root growth in Brassica napus L. by affecting multiple plant hormone pathways.
19 citations
,
January 2015 in “Current problems in dermatology” Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.
6 citations
,
January 2010 in “Springer eBooks” SA linked to mitochondrial issues and oxidative stress, while AGA involves disrupted hair growth genes.
5 citations
,
May 2021 in “International Journal of Cosmetic Science” Healthy scalp leads to better hair quality and less damage.
3 citations
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September 2005 in “Experimental dermatology” The cornified envelope is crucial for skin's barrier function and involves key proteins and genetic factors.
February 2026 in “Clinical Cosmetic and Investigational Dermatology” Low humidity changes skin gene expression, but emollients can help manage these changes.
July 2025 in “International Journal of Dermatology Venereology and Leprosy Sciences” Higher stress levels may worsen alopecia areata, suggesting stress management is important for treatment.
August 2023 in “International Ayurvedic medical journal” Improper diet, lifestyle, and stress are major causes of hair fall.
April 2018 in “Journal of Investigative Dermatology” Mint water extract boosts protective enzymes in skin cells.
April 2017 in “Journal of Investigative Dermatology” The PON1 192R gene variant is linked to a higher risk of psoriasis and heart disease in Western Mexico.
September 2014 in “Springer eBooks” Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.
224 citations
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March 2006 in “Seminars in Cutaneous Medicine and Surgery” The document concludes that understanding hair follicle biology can lead to better hair loss treatments.
191 citations
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May 2018 in “British journal of dermatology/British journal of dermatology, Supplement” Alopecia areata is likely an autoimmune disease with unclear triggers, involving various immune cells and molecules, and currently has no cure.
101 citations
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January 1997 in “Journal of Investigative Dermatology Symposium Proceedings” Nerves and chemicals in the body can affect hair growth and loss.
21 citations
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May 1996 in “Current problems in dermatology” Detailed patient history and physical exams are crucial for diagnosing hair loss.
December 2025 in “The American Journal of Medical Sciences and Pharmaceutical Research” Combining barber scalp care with medical treatment improves scalp health and well-being in early-stage alopecia.
January 2025 in “International Journal of Pharmacognosy and Life Science” Herbal treatments like Aloe vera, Bhringraj, Neem, Tea tree oil, Amla, and Hibiscus are promising for safer, effective hair care.
December 2022 in “Exploratory animal and medical research” The study concluded that Acral lick dermatitis is most common in young male Labrador retrievers, often caused by psychological factors, and leads to skin inflammation and stress-related blood changes.
January 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” Mothers have more hair proteins than their children, with age-related differences in protein patterns, and some proteins in hair could indicate early childhood development.