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Hair cortisol levels in primates are useful for stress assessment but vary by age, sex, species, and hair collection methods.

Collecting hair for cortisol analysis is possible in low-income mother-toddler pairs.

Collecting hair from all scalp sections works as well as the standard method for cortisol analysis.

A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.

Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.

Hair cortisol is a reliable stress indicator in cattle but may not be valid for pigs.

Elephant tail-hair can show past stress levels, matching times when stressful events happened.

Pigs in farrowing crates and loose-housing systems showed no difference in chronic stress levels as measured by hair cortisol.

Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.

High hair cortisol levels indicate stress in cows due to poor shelter conditions and health issues.

Clippers are the best tool for collecting dog hair for chemical tests, being fast and stress-free for the dog.

The method can measure multiple hormones in women's hair and may help identify hormone-related health issues.

Alopecia in captive rhesus macaques is affected by season, sex, age, housing, and stress, with complex links between stress hormones and hair loss.

Scalp hair sweating is a significant predictor of hair cortisol levels.

High levels of cortisol in hair show long-term stress which can lower fertility in animals.

Hair cortisol may be a good indicator of recent mood in people with bipolar disorder.

Cortisone and cortisol levels in pregnant women’s hair increase as labor approaches, indicating higher stress.

Pioglitazone improved insulin sensitivity and altered cortisol metabolism in PCOS patients.

Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.

First-time mothers had higher stress hormone levels in late pregnancy than mothers who had given birth before.

Moving horses to new places can increase their stress levels, as shown by higher stress hormone in their hair.

Girls had higher stress hormone levels during school due to social and emotional issues, while boys had higher overall hormone levels with slight changes when school started.

Men with male-pattern baldness have higher levels of certain testosterone metabolites and may have more active androgen metabolism.

Women with effluvium have higher levels of certain urinary steroids, possibly due to stress and increased adrenal activity.

Dihydrotestosterone increases the activity of an enzyme in pubic skin cells that converts testosterone to dihydrotestosterone.

The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.

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

Ketoconazole reduced hair growth and improved acne in women, but caused side effects needing careful monitoring.

Women with hair loss had higher levels of certain hormones, suggesting a link to a condition like PCOS.

Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.