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Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.

A patient with alopecia areata regrew hair after taking tofacitinib and showed changes in certain blood and skin markers.

Hearing decline in SAMP8 mice starts before outer hair cell loss and may be linked to other changes.

lncRNAs may help control cashmere goat hair growth by responding to light changes.

Oral minoxidil 7.5 mg for hair loss increases heart rate but not blood pressure.

3D-ultrasound can non-invasively detect and predict alopecia areata phases and outcomes.

Epidermal growth factor causes hair loss by triggering cell death and changing the hair cycle.

Heat shock protein 27 is more present in the active growth phase of human scalp hair follicles.

Thioglycerol treatment at pH 9.0 with ammonia causes less hair damage and better waving than thioglycolic acid.

Breast cancer alters specific molecular structures in hair, which revert after cancer removal.

Repeated hair dyeing significantly damages hair.

Platelet-rich plasma injections effectively increase hair density in men suffering from common hair loss.

COVID-19 protective measures led to skin irritation, hair loss, and brittle nails; using skin-friendly products and a healthy diet is recommended.

Permanent waving damages hair protein and weakens hair, especially with repeated treatments using sodium thioglycolate.

The angora mouse mutation causes long hair and hair defects due to a gene deletion.

The proteins transthyretin and megalin are more present in the growth phase of hair, suggesting they might affect hair health and growth.

Some drugs can cause skin, nail, and hair problems, which are important for healthcare professionals to recognize and report.

Pregnancy can cause skin pigmentation, stretch marks, and changes in hair, nails, and sweat glands, with most resolving after birth.

Skin and hair can regenerate after injury due to changes in gene activity, with potential links to how cancer spreads. Future research should focus on how new hair follicles form and the processes that trigger their creation.

Menopausal women have higher androgen levels, which can cause symptoms like facial hair growth and low sexual desire.

Hormonal changes after childbirth and menopause can lead to women's hair loss and facial hair growth, with a need for better treatments.

Over 40% of women have unwanted facial hair, which can affect their self-image, and should be managed with personalized treatment and support.

Hair care products don't cause hair loss if used correctly.

Aging scalp skin contributes to hair aging and loss, and more research is needed to develop better hair loss treatments.

Poplar seed hairs grow from the placenta at the ovary base, with endoreduplication playing a key role in their development, and share similar cellulose synthesis processes with cotton fibers.

The conclusion is that proper evaluation and treatment of hair loss in midlife women is important, considering the emotional impact and potential for various treatments.

Both gene and non-gene areas of DNA evolved to make some mammals hairless.

Common types of non-scarring hair loss have various causes and treatments, but more effective solutions are needed.

Obstetrician/gynecologists can diagnose and manage female hair loss with careful history taking and examination.

Up to 50% of scalp hair can be lost before it appears thin, and treatment is only needed for hair loss caused by diseases or deficiencies.