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Eating fewer calories may slow aging and removing old cells can increase lifespan in mice.

Certain genetic markers linked to reproductive potential were identified by their impact on a protein's ability to bind to genes.

Changing light exposure boosts hormone levels and antioxidant activity, improving cashmere growth in goats.

Hair cortisol can indicate animal stress but varies with many factors.

The study found three different timing patterns of symptoms in women with premenstrual dysphoric disorder.

Cashmere goat hair growth follows a cycle with distinct growth, regression, and resting periods, influenced by specific genes.

Scalp conditions change with age, affecting hair health.

Caregivers had lower stress hormone levels than non-caregivers, suggesting caregiving stress affects the body differently.

Humans can accurately guess age from faces, with women being slightly better at it, and age perception is linked to evolutionary factors.

Older people with type 2 diabetes are more likely to have gum disease.

Hormonal status significantly affects women's skin health throughout their lives.

Male and female mice handle stress differently.

B6J mice live longer before 24 months, but B6N mice live longer after; both strains show weight gain, increased food and water intake, and health issues as they age.

Confinement in farrowing crates doesn't increase chronic stress in sows, but hair cortisol measurements may not reliably indicate stress due to hair growth variations.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Long working hours increase the risk of hair loss in Korean male workers.

Different populations have distinct hair structures related to their ancestry.

Different rat and mouse strains respond differently to stress and alcohol, which may help us understand similar human mechanisms.

Ancient immune and signaling pathways still regulate blood cell development.

Elephant tusks and hair reveal seasonal diet and climate changes.

PCOS may have evolved as an advantage in past environments with food scarcity.

Short photoperiods improve cashmere growth and quality in goats by changing hormone levels and gene expression.

The CDC reports 23 measles cases in unvaccinated US kids, new treatments for eosinophilic esophagitis and osteopenia are approved, poor sleep may cause migraines, atopic dermatitis could lead to asthma, migraines might increase Crohn's disease risk, cancer may raise heart disease risk, gout is linked to prostate issues, Cabo Verde is malaria-free, social factors and vitamin D affect dementia risk, smoking increases hair loss risk, certain drugs might lower thyroid disease risk in arthritis, noma is a neglected disease, and meal timing could impact heart health.

Changing light periods synchronized wool growth cycles in sheep.

Hair cortisol levels may be linked to stress, but results are inconsistent.

Hair area varies with age and sex, but hair index and medullary index do not.

Small hormonal imbalances can cause significant health problems, so more sensitive testing for hormone-disrupting chemicals is needed.

Certain ESR1 gene variations may affect hormone levels and fat distribution in women with high male hormone levels.

Increasing daylight to 16 hours in winter can make mares ovulate and cycle earlier.