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

Circadian clock genes are important for hair growth and may affect aging-related hair loss and graying.

The document concludes that mouse models are crucial for studying hair biology and that all mutant mice may have hair growth abnormalities that require detailed analysis to identify.

Mice with a changed Hr gene lose and regrow hair due to changes in the gene's activity.

The timing of when the gene Bmal1 is active affects aging and survival, with its absence during development, not adulthood, leading to premature aging.

The circadian clock is crucial for tissue renewal and regeneration, affecting stem cell functions and having implications for health and disease.

Disrupted sleep patterns from artificial light can slow hair growth and may lead to hair loss.

A gene called BMAL1 plays a role in controlling hair growth.

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

Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.

The Hairless gene is crucial for hair cell development, affecting whether skin cells become hair or skin and oil gland cells.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

Circadian rhythms are crucial for stem cell function and tissue repair, and understanding them may improve aging and regeneration treatments.

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.

The circadian clock affects skin stem cell behavior, impacting aging and cancer risk.

Certain mice without specific receptors or mast cells don't lose hair from stress.

Disrupting natural body clocks increases the risk of developing type 2 diabetes.

Removing the ATR gene in adult mice causes rapid aging and stem cell loss.

Removing myelin protein zero-like 3 in mice leads to better metabolism and resistance to obesity.

Cold temperatures can stop human cell circadian rhythms, but warming restores them.

Intense exercise at night can delay the body's internal clock gene expression by 2 to 4 hours.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Aging in hair follicle stem cells leads to hair graying, thinning, and loss.

Genes related to pigmentation, body rhythms, and behavior change during hares' seasonal coat color transition, with a common genetic mechanism in two hare species.

Night shift work disrupts the body's natural clock genes.

Hair loss and aging are caused by the breakdown of a key protein in hair stem cells.

Androgen receptors in the mouse brain may explain cognitive and mood changes in prostate cancer treatment.

The circadian clock plays a key role in hair growth and its disruption can affect hair regeneration.

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

Shift work disrupts the body's natural clock, leading to health problems.