28 citations
,
June 2015 in “Journal of circadian rhythms” An individual's morning or evening preference can predict changes in their body clock gene expression.
November 2025 in “DOAJ (DOAJ: Directory of Open Access Journals)” Insomnia may increase alopecia areata risk, but more research is needed.
36 citations
,
July 2016 in “Scientific reports” People's decision-making can be influenced by their internal biological clocks, as shown by gene expression, not just self-reported preferences for morning or evening.
12 citations
,
January 2019 in “Sleep medicine” Night shift work disrupts the body's natural clock genes.
1 citations
,
November 2025 in “Clinical Cosmetic and Investigational Dermatology” Sleep patterns might be linked to hair loss, but more research is needed.
50 citations
,
January 2018 in “Acta physiologica” Working night shifts for four days can lower the body's ability to use insulin, which may increase the risk of type 2 diabetes.
49 citations
,
April 2016 in “International journal of molecular sciences” Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.
5 citations
,
December 2016 in “International journal of biometeorology” Bright light during the day doesn't change most human clock genes but may slightly increase Rev-erb-ß.
January 2026 in “Dermatology and Therapy” Poor sleep may lead to hair loss, and hair loss may affect sleep.
The trial aims to understand how obesity and lifestyle affect circadian rhythms in people with schizophrenia and bipolar disorder.
January 2024 in “Diabetes & metabolism journal” Disrupting natural body clocks increases the risk of developing type 2 diabetes.
9 citations
,
September 2019 in “Journal of clinical sleep medicine” Vitamin B12 deficiency can rarely cause excessive daytime sleepiness.
25 citations
,
February 1977 in “American Journal of Veterinary Research” Increasing daylight to 16 hours in winter can make mares ovulate and cycle earlier.
103 citations
,
December 2021 in “Journal of biological rhythms” Shift work disrupts the body's natural clock, leading to health problems.
27 citations
,
February 2014 in “BMC Cancer” Circadian rhythm disruption, chronic inflammation, hormones, metabolism, and genetics may increase prostate cancer risk.
5 citations
,
January 2023 in “International Journal of Molecular Sciences” Hair follicles could be used to noninvasively monitor our body's internal clock and help identify risks for related diseases.
83 citations
,
February 1977 in “PubMed” Increasing light exposure in winter can make mares ovulate and cycle earlier.
51 citations
,
January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
April 2023 in “Tropical Animal Health and Production” Giving melatonin to sheep before the non-breeding season can improve their chances of reproducing in northwest Mexico.
January 2016 in “Xumu Shouyi Xuebao”
13 citations
,
June 2020 in “Scientific reports” Melatonin stimulates the skin components of ram's scrotum during their non-breeding season.
38 citations
,
August 2012 in “Biochemical and biophysical research communications” Human leukocytes and beard hair follicle cells have internal daily clocks, and PER1 and PER3 genes may indicate individual circadian rhythms.
11 citations
,
August 2018 in “Asian-Australasian journal of animal sciences” Short daily photoperiods improve cashmere production in Inner Mongolia white cashmere goats.
10 citations
,
June 2005 in “Small ruminant research” Melatonin treatment may increase cashmere production in Spanish goats.
46 citations
,
March 2019 in “Journal of Pineal Research” Melatonin improves cashmere goat hair growth and quality by increasing antioxidants and reducing cell death.
18 citations
,
March 2015 in “Journal of Investigative Dermatology” Silencing certain circadian clock genes increases skin pigmentation.
January 1999 in “Universitas Philosophica” Cornifin-alpha/SPRR1 is increased in certain skin conditions and by specific treatments.
4 citations
,
October 2017 in “Journal of Mind and Medical Sciences” The brain may create four separate minds, each with its own mental reality.
6 citations
,
September 2019 in “Journal of cosmetic dermatology” Lower melatonin levels are linked to more skin aging.
June 2021 in “Research Square (Research Square)” Melatonin can increase cashmere yield by altering gene expression and restarting the growth cycle early.