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Childhood sexual trauma, especially between ages 5-7, is linked to lower cortisol levels in adult hair, suggesting long-term stress response changes.

Stress does not significantly cause hair loss among medical students.

Testosterone increases hair testosterone levels, stress raises hair cortisol, and relationship status affects hormone levels.

Anorexia nervosa may cause a hair defect called pili torti due to malnutrition and high vitamin A levels.

Trichoscopy is a useful tool for diagnosing hair disorders without pulling out hair.

Testosterone needs to be converted to DHT to reduce stress response in male rats.

Higher stress levels are linked to more skin problems, especially in young women.

Stress hormone corticosterone suppresses hair growth by affecting stem cell activity and Gas6 protein expression.

Trichostasis spinulosa can look like acne but usually affects adults, not children.

The study concludes that traction alopecia, caused by hair styling, can help understand telogen effluvium, a condition of excessive hair loss.

Stress worsens symptoms and body changes in women with PCOS, especially during COVID-19.

Alopecia areata patients have higher oxidative stress and lower antioxidant levels.

Stress might trigger hair loss in alopecia areata, but more research is needed.

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

Tiger tail bands in hair are caused by wavy hair fibers with melanin, unlike straight fibers in normal hair.

Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.

Minoxidil use can cause trichostasis spinulosa in long-term hair loss patients.

Kids with alopecia areata may experience more stress but not necessarily feel more anxious or depressed than others.

People with a common type of hair loss have higher stress levels in their body, and treatments that reduce this stress could help.

Changes in keratin make hair follicles stiffer.

A 14-year-old girl with a condition that makes her hair easy to pull out also has a hair-pulling disorder, and treatment helped but she relapsed after a year.

Traumatic anserine folliculosis is a skin condition caused by friction, treatable with topical cream and avoiding trauma.

Trichoscopy can detect early signs of steroid overuse on the scalp, suggesting a need for non-steroidal treatments.

Simulated microgravity affects root hair growth direction.

Keratin fibers in hair twist left-handed.

Cell polarity signaling controls tissue mechanics and cell fate, with complex interactions and varying pathways across species.

The trichotillometer is a simple, effective tool for diagnosing and assessing female pattern hair loss.