116 citations
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May 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.
92 citations
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September 2013 in “Journal of Investigative Dermatology” BMAL1 and Period1 genes can influence human hair growth.
July 2023 in “Biomolecules” The circadian clock plays a key role in hair growth and its disruption can affect hair regeneration.
14 citations
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June 2016 in “Hypertension research” New method uses hair follicle cells to estimate human body clock phase, potentially improving sleep disorder diagnosis.
127 citations
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January 2015 in “Journal of Biological Rhythms” The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.