294 citations
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August 1999 in “Journal of the American Academy of Dermatology” Laser hair removal is safe with the right settings, but side effects like pain and skin changes are more common in darker or tanned skin.
157 citations
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April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
157 citations
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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.
98 citations
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February 2007 in “Seminars in Cell & Developmental Biology” Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.
47 citations
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May 1999 in “Reproduction” Goat reproductive activity and coat growth are affected by light and temperature, with temperature altering prolactin levels and hair growth, but not melatonin or estrus onset.
32 citations
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December 2017 in “International Journal of Molecular Sciences” Low vitamin D might be linked to certain types of hair loss, and supplements could help, but more research is needed.
23 citations
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March 2019 in “Journal of Essential Oil Research” Rosemary's antioxidant content changes with the climate and season.
9 citations
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November 2007 in “Veterinary dermatology” Boxer and Labrador dogs' hair growth is affected by the tropical climate, but Schnauzers' is not.
5 citations
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May 2018 in “Journal of the American Academy of Dermatology” Lower vitamin D levels might be linked to more severe alopecia areata, but more research is needed to understand if vitamin D can help treat it.
3 citations
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January 2015 in “Evidence-based Complementary and Alternative Medicine” Pumpkin seed oil may help hair growth, but more research needed on frontal hair loss and long-term effects.
1 citations
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June 2022 in “Zagazig Veterinary Journal/Zagazig Veterinary Journal (Online)” Alopecia in dogs is often caused by mange, flea and tick infestations, and nutritional deficiencies, especially in males and young dogs.
1 citations
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January 2018 in “Journal of clinical & experimental dermatology research” Some nail changes in chilblains can look like lichen planus and may be severe and long-lasting.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” DHT increases scalp heat, causing hair loss.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” DHT increases scalp heat, causing hair loss.
Soapnut shampoo cleans hair naturally, promotes growth, reduces dandruff, and is gentle on the scalp.
January 2025 in “Conservation Physiology” Bear hair grows 0.10 to 1.05 mm per day, varying by individual and season.
April 2019 in “Journal of Investigative Dermatology” Allergens show specific patterns related to season, gender, and age, which can help in developing allergy avoidance plans.
January 2022 in “Faculty of 1000 Research Ltd” During COVID-19, Iraqi women experienced more hair loss and skin issues like acne, likely due to stress and mask-wearing.
September 2016 in “International Journal of Dermatology” The document covers various dermatological conditions and their studies.
Preventive measures and education can reduce common skin disorders in children.
Topical minoxidil 2% improves hair growth in about 30% of users.
7 citations
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January 2017 in “Journal of Clinical Biochemistry and Nutrition” Higher vitamin D levels are linked to higher iron levels in Korean women without metabolic syndrome, but not in those with it.
113 citations
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March 2018 in “Biological reviews/Biological reviews of the Cambridge Philosophical Society” Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.
75 citations
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January 1995 in “American journal of primatology” Vervet monkeys show physical changes like hair loss and scrotal color changes due to stress or nutrition issues.
February 2019 in “Journal of the Faculty of Agriculture Kyushu University” Terpene concentrations in coniferous trees are highest in spring and summer, making these seasons best for extracting essential oils.
28 citations
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May 2017 in “Molecular ecology” Researchers found genes that control hair color and growth change before the visible coat color changes in snowshoe hares.
January 2023 in “Kafkas üniversitesi veteriner fakültesi dergisi/Kafkas üniversitesi veteriner fakültesi dergisi” Seasonal changes affect gene activity linked to hair growth in Angora goats.
November 2022 in “Research Square (Research Square)” Seasonal changes affect hair growth genes in Angora goats, possibly influencing mohair quality.
April 2024 in “Journal of wildlife diseases” Muskox hair growth rates vary widely, so a single growth rate can't be used for all populations.
December 2024 in “Journal of Population Therapeutics and Clinical Pharmacology” Psoriasis worsens in winter in India due to less sunlight and dry skin, needing personalized treatment.