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GlossaryEnvironmental Factors

external elements influencing health, like climate, pollution, and stress

Environmental factors refer to external elements that can influence an individual's health and well-being. These include aspects like climate, pollution, diet, stress, and exposure to chemicals. In the context of hair and alopecia, environmental factors can affect hair growth and health, potentially contributing to hair loss or other scalp conditions. For example, high levels of pollution or exposure to harsh chemicals can damage hair follicles, while stress can disrupt the hair growth cycle.

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research Differential impact of environmental factors on systemic and localized autoimmunity

5 citations , May 2023 in “Frontiers in immunology”

Environmental factors like diet and vitamin levels, especially Vitamin D, can affect autoimmune diseases differently, with lifestyle changes potentially improving outcomes.

research Role of Environmental Factors and Gonadotoxin Exposure in Unexplained Male Infertility

2 citations , January 2015 in “Springer eBooks”

Environmental factors and exposure to toxins may contribute to male infertility by affecting sperm and hormone function.

research Rethinking of Preventive Effect of Hair Loss in Environment and Food Factors

August 2025 in “Food Science and Technology”

Eating black soybeans and white ferula mushrooms may help prevent hair loss.

Gray Patch Tinea Capitis by Microsporum Canis in a Child: A Case Report Highlighting Environmental Risk Factors and Diagnostic Nuances

research Gray Patch Tinea Capitis by Microsporum canis in a Child: A Case Report Highlighting Environmental Risk Factors and Diagnostic Nuances

August 2025 in “Bioscientia Medicina Journal of Biomedicine and Translational Research”

Environmental factors like shared combs can spread tinea capitis, and trichoscopy helps diagnose it.

Influence of Environmental Factors on Androgenic Alopecia Occurrence

research On the influence of environmental factors on the occurrence of androgenic alopecia

February 2024 in “Agroèkoinfo”

Environmental factors and grain products affect hair loss, with low cobalt in hair possibly predicting the condition.

research Evaluation of the Environmental Risk Factors and Comorbidities in Patients with Lichen Planopilaris: A Case-Control Study

October 2024 in “Skin Appendage Disorders”

Both environmental and genetic factors contribute to Lichen Planopilaris.

Environmental and Cosmetic Factors in Hair Loss and Damage

research Environmental and Cosmetic Factors in Hair Loss and Destruction

12 citations , January 2007 in “Current problems in dermatology”

Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.

research Adult skin acute stress responses to short‐term environmental and internal aggression from exposome factors

37 citations , June 2021 in “Journal of the European Academy of Dermatology and Venereology”

Adult skin quickly reacts to short-term environmental and internal stress, leading to various skin issues and the need for protective measures.

research Molecular epidemiology of hypospadias: Review of genetic and environmental risk factors

103 citations , October 2003 in “Birth Defects Research”

Both genes and environmental factors like chemicals may contribute to the increase in hypospadias, but the exact causes are still unclear.

research Genetic and Environmental Factors Affecting Hair Density in East Asian Populations

April 2025 in “British Journal of Dermatology”

Age, sex, BMI, menopause, and specific genes affect hair density in East Asians.

research Genetic and Environmental Factors that Control Merkel Cell Development and Survival

July 2017 in “D-Scholarship@Pitt (University of Pittsburgh)”

Notch signaling stops Merkel cell development, and hair follicles help maintain them after skin injury.

research Medical and Environmental Risk Factors for the Development of Central Centrifugal Cicatricial Alopecia

88 citations , April 2011 in “Archives of Dermatology”

Type 2 diabetes, bacterial scalp infections, and tight hairstyles like braids and weaves are linked to a higher risk of a scarring hair loss condition in African American women.

research Inducing hair follicle organogenesis with defined environmental protein factors

September 2016 in “Journal of Dermatological Science”

Protein extract from embryonic skin can create new hair follicles in adult life, primarily through effects on fibroblasts.

research Deterioration of scalp environment by exogenous factors and its influence on hair growth promoting effect of minoxidil

February 2020 in “The Pharmaceutical Society of Japan”

research Development of polycystic ovary syndrome: involvement of genetic and environmental factors

232 citations , December 2005 in “Andrology”

PCOS is caused by both genetics and environmental factors like diet and obesity.

research Hepatitis C virus: host, environmental and viral factors promoting spontaneous clearance

4 citations , September 2020 in “Journal of Mind and Medical Sciences”

Hepatitis C can clear naturally in some people due to strong immune response, genetics, and limited exposure.

research The The Relationships Among Routes of Transmissions, Environmental Factors Tolerance and Mutation Rates of Some RNA Viruses

August 2025 in “Al-Iraqia Medical College Journal”

Virus infection risk is linked to heat tolerance and size, but decreases with high humidity and mutation rates.

research Disentangling the Coronavirus Disease 2019 Health Disparities in African Americans: Biological, Environmental, and Social Factors

28 citations , February 2021 in “Open Forum Infectious Diseases”

African Americans faced worse COVID-19 outcomes due to a mix of social, environmental, and biological factors.

research The Contribution of Endogenous and Exogenous Factors to Male Alopecia

37 citations , April 2013 in “Plastic and Reconstructive Surgery”

Genetic and environmental factors, like smoking and exercise, affect male hair loss.

research Ultrastructural alterations and environmental exposure influence the opiate concentrations in hair of drug addicts

33 citations , June 1995 in “International journal of legal medicine”

Environmental factors can greatly reduce drug levels in hair.

research Environmental Influences on the Hair Follicle

12 citations , January 1981 in “Springer eBooks”

Environmental factors like temperature and nutrition affect hair growth, with humans showing seasonal hair growth differences.

Alopecia Areata: Risk Factors, Prevention Possibilities, and Therapeutic Options

research Alopecia areata - risk factors, prevention possibilites and therapeutical options

October 2023 in “Dermatologie pro praxi”

Alopecia areata causes hair loss and has various treatment options, but responses differ.

research Research Progress in Composition, Classification and Influencing Factors of Hair

September 2023 in “Asian journal of beauty & cosmetology”

Lipids are important for healthy hair, but their exact role is not fully understood and needs more research.

research Epigenetic and Environmental Regulation of Skin Appendage Regeneration

January 2015

Both changes in genes and environmental factors like diet and toxins can significantly affect the growth of skin appendages like hair, but how these factors interact is still unclear.

research Facial skin aging: an integrative analysis of genetics, epigenetics, and lifestyle factors

December 2025 in “GeroScience”

Genetics, epigenetics, and lifestyle all influence facial skin aging.

Genetics and Other Factors in the Etiology of Female Pattern Hair Loss

research Genetics and other factors in the aetiology of female pattern hair loss

43 citations , April 2017 in “Experimental Dermatology”

Female pattern hair loss has unclear causes, possibly involving genetics, hormones, and environment, and needs better treatments.

research The Value of Genetic and Non-Genetic Factors in the Emergence and in the Development of Androgenetic Alopecia in Men: Multifactor Analysis

4 citations , July 2019 in “Vestnik Rossiĭskoĭ akademii meditsinskikh nauk / Rossiĭskaia akademiia meditsinskikh nauk”

Both genetics and lifestyle factors contribute to male pattern baldness.

Therapeutic Strategy for Hair Regeneration: Hair Cycle Activation, Niche Environment Modulation, Wound-Induced Follicle Neogenesis, and Stem Cell Engineering

research Therapeutic strategy for hair regeneration: hair cycle activation, niche environment modulation, wound-induced follicle neogenesis, and stem cell engineering

74 citations , January 2013 in “Expert Opinion on Biological Therapy”

The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.

research Hair chromium concentration: effects of sample washing and external environment

64 citations , April 1972 in “American Journal of Clinical Nutrition”

Hair chromium levels reflect nutritional status after standard washing.

Intrinsic and Extrinsic Factors Associated with Hair Graying and Therapeutic Potential of Plant Extracts and Phytochemicals

research Intrinsic and Extrinsic Factors Associated with Hair Graying (Canities) and Therapeutic Potential of Plant Extracts and Phytochemicals

August 2024 in “Applied Sciences”

Plant extracts may help prevent or reverse hair graying.