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Hair graying is influenced by factors like nerves, fat cells, and immune cells, not just hair follicles.

Phthirusa pyrifolia extract may lower testosterone and harm male rat reproduction without damaging the liver or kidneys.

Mild exercise reduces pain in older rats through a brain chemical, while intense exercise reduces pain in all rats through a different pain-blocking process.

Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.

Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.

The document lists various dermatology topics, treatments, and diagnostic methods.

The method accurately measures hormones and endocannabinoids in mice, showing gut microbiota diversity affects these levels and may influence stress and reproductive systems.

Neurosteroids help regulate oxytocin levels, especially during stress and pregnancy, to protect against premature labor.

New hair growth corticosterone levels are higher in diabetic mice, indicating long-term stress.

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

Nearly half of the studied men with long COVID had low testosterone, including younger men.

The study concluded that similar pathways regulate hair growth in dogs and mice, and these pathways are disrupted in dogs with Alopecia X, affecting stem cells and hormone metabolism.

Androgen use may increase the risk of stroke, but more research is needed.

5-alpha reductase inhibitors, like finasteride and dutasteride, may cause depression, but more research is needed to understand why.

Taking 5 alpha reductase inhibitor medication slightly increases the risk of depression, especially as you get older.

Natural products may help treat skin inflammation from abnormal adrenal hormones.

Men with more severe hair loss had a lower risk of schizophrenia, but hair loss and testosterone levels were not linked.

The skin acts like an endocrine organ, producing hormones that affect various body functions and skin health, and understanding this can lead to new treatments.

Pregnancy and nursing increase certain brain activities in rats, but these changes disappear when the babies are taken away.

A woman with anorexia and Cushing's syndrome improved after tumor removal, highlighting the need to consider hormonal issues in psychiatric conditions.

The CRH/CRH-R1 system might be involved in causing lichen planus.

High doses of finasteride cause cell growth and tumors in mice.

Hormones and genes affect hair growth and male baldness.

Finasteride causes abnormal growth in male mice cells at high doses.

The skin acts like an endocrine organ, making hormones that affect skin diseases and respond to stress.

TRH stimulates human hair growth and extends the hair growth phase.

The document explains different types of hair loss, their causes, and treatments, and suggests future research areas.

The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.

Stress hormone CRF can cause hair loss by affecting hair growth cells and hormones.

Muskoxen's qiviut cortisol levels indicate their stress hormone activity over the hair growth period.