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The circadian clock influences the behavior and regeneration of stem cells in the body.

Disrupted sleep patterns can harm skin and hair cell renewal, but melatonin might help.

Melatonin affects many body functions beyond sleep by interacting with specific receptors in various tissues.

Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.

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.

BMAL1 controls skin cell growth and UV damage risk, peaking at night.

Hormone therapy improves mental well-being in transgender individuals but requires ongoing health monitoring.

Silencing certain circadian clock genes increases skin pigmentation.

Hair follicles could be used to noninvasively monitor our body's internal clock and help identify risks for related diseases.

Sleep problems and skin issues affect each other; poor sleep can worsen skin conditions, and some skin treatments can improve or harm sleep quality.

Human skin's melanocytes respond to light by changing shape, producing pigments and hormones, which may affect sleep patterns.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

Anorexia Nervosa and Bulimia Nervosa are complex eating disorders with increasing incidence among young females, significant morbidity, and varying mortality rates, requiring more research for better treatment.

Melatonin receptors, found in many body parts, can help treat various diseases like depression and diabetes due to their effects on inflammation, tumor progression, sleep disorders, and body mass regulation.

The Rotterdam Study updated findings on elderly health, focusing on heart disease, genetics, lifestyle effects, and disease understanding.

The Rotterdam Study found risk factors for elderly diseases, links between lifestyle and genetics with health conditions, and aimed to explore new areas like DNA methylation and sensory input effects on brain function.

The Rotterdam Study aims to understand disease causes in the elderly and has found new risk factors and genetic influences on various conditions.

The article concludes that better understanding gene regulation related to seasonal changes can offer insights into the mechanisms of seasonal timing in mammals.

The hair follicle is a great model for research to improve hair growth treatments.

New findings explain how genetic changes, body clocks, and certain molecules affect tissue response to stress hormones.

Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.

The document concludes that future heart disease research should account for sex-specific differences to improve diagnosis, treatment, and outcomes.

Melatonin improved mental health and metabolism in women with PCOS.

Testosterone replacement therapy can prevent men from fathering children and should not be used by those wanting to stay fertile.

Sarcoptes scabiei infection causes significant health and behavior changes in wombats.

Mice lacking steroid 5α-reductase 2 show less aggression and better impulse control.

The document concludes that hormonal biomarkers are key for diagnosing hyperandrogenemia in women and hypogonadism in men.

International medical graduates outperformed U.S. graduates on an internal medicine exam.

International medical graduates outperformed U.S. graduates on an internal medicine exam.

Topical L-thyroxine may help with wound healing and hair growth but should be used short-term due to potential risks.