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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Retinoids can change the hair growth cycle by extending the growth phase and shortening the rest phase.
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July 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Neural stem cells use local feedback to maintain balance in the adult brain.
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May 1998 in “Acta agriculturæ Scandinavica. Section A, Animal science” Blue foxes born later in the season have a slightly delayed fur growth cycle, but it catches up by mid-November.
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November 2015 in “Skin Research and Technology” Women's hair grows faster and thicker than men's, but hair growth slows for both genders with pattern hair loss.
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May 2019 in “Genome Biology” Researchers found that certain RNA circles in the brain are linked to disease risk, but their exact role in disease is still unknown.
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January 2005 in “Endocrine journal” Melatonin is important for skin health and protection, and can be made by the skin or applied to it.
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October 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” G2 stem cells control calcium signaling for skin regeneration.
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April 2010 in “Digital WPI” CLK1 is needed for skin cells to become epidermal cells but not sebocytes.
January 2026 in “Neuroscience Applied” Hair cortisol levels decrease as children age, stabilizing around age 4.
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October 2010 in “Journal of dermatological treatment” External treatments can change hair growth patterns in nude mice.
September 2017 in “Journal of Investigative Dermatology” Hair follicle cells change their DNA packaging during growth cycles and when grown in the lab.
January 2001 in “Nishi Nihon hifuka” The document concluded that there are differences in hair growth cycles and skin cell turnover rates, which can be measured with electronic equipment.
January 2023 in “Journal of applied animal research” Short photoperiods improve cashmere growth and quality in goats by changing hormone levels and gene expression.
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September 2018 in “Journal of Molecular Cell Biology” Endoglin is crucial for proper hair growth cycles and stem cell activation in mice.
December 2022 in “Journal of Pharmaceutical Negative Results” Late onset of first period and irregular development of sexual traits in teenage girls can lead to poorer reproductive health.
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April 2011 in “Science” Hair stem cell regeneration is controlled by signals that can explain different hair growth patterns and baldness.
January 2026 in “Applied Sciences” Cyclic ADP-ribose helps regulate calcium and signals that promote hair growth in hair follicle cells.
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May 2014 in “British Journal of Dermatology” Caffeine affects hair growth and health differently in men and women.
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March 1951 in “Annals of the New York Academy of Sciences” Understanding the mouse hair cycle is crucial for cancer research.
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July 2019 in “British Journal of Dermatology” Wnt signaling is important for the change from the resting phase to the growth phase in human hair cycles.
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February 2011 in “American Journal of Biological Anthropology” The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
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November 2023 in “International Journal of Molecular Sciences” Melatonin helps reduce aging signs in human eyelid skin.
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October 1990 in “Archives of Dermatological Research” The connective tissue around hair follicles changes structure throughout the hair cycle.