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Testosterone can cause acne and male-pattern baldness, affects hair growth in men and women, and makes male skin more sensitive.

Hair loss in men is mainly caused by hormones and genes, and while current treatments can slow it down, they can't fully stop it.

Minoxidil was the most effective treatment for hair regrowth in rats compared to Aminexil or Kerium.

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

The Cross-section Trichometer is a promising tool for measuring hair characteristics without cutting the hair and may have various clinical uses.

OCT can effectively screen and diagnose various medical conditions non-invasively.

The study found that sweat glands normally suppress immune responses, but this is disrupted in certain skin diseases, possibly contributing to their development.

Stabilizing HIF-1A in hair follicles may reduce oxidative stress and promote hair growth by increasing glycolysis.

Hair loss causes emotional distress, leading to high spending on treatments, with Minoxidil and Propecia being common but having side effects.

The document suggests more research is needed to understand the link between baldness and prostate cancer.

The book has valuable information but is hard to read due to poor writing.

Surgical hair replacement is a viable option for male pattern baldness when done with proper planning and realistic expectations.

Cimetidine is not a first-choice treatment for female hair loss, and there's no consistently successful treatment for this condition in men or normal hormone level women.

High aldosterone and free testosterone levels link to female hair loss; testing aldosterone may predict hypertension risk.

South Asian women with PCOS are more likely to have metabolic issues and central obesity, and simple measures like waist size and blood pressure can help identify these risks early.

Blocking Wnt signaling in young mice causes thymus shrinkage and cell loss, but recovery is possible when the block is removed.

Effective hair loss assessment requires a mix of precise measurement methods.

Smaller hair grafts in transplants offer better cosmetic results and more styling options, but challenges like thinning and limited coverage remain.

Choose the right patients and plan carefully for successful hair replacement surgery.

Adiponectin reduces inflammation and bone loss in joint replacements.

Hormones and genetics affect hair growth and patterns, with some changes reversible and others not.

FUE hair transplant is a promising method with benefits like less scarring, but requires a skilled surgeon and can damage hair follicles.

The PRECISE scale helps estimate how many grafts are needed for hair transplant based on the severity of hair loss.

Hair transplantation techniques have improved, making the process safer and more effective with less visible scarring.

Bioengineering can potentially treat hair loss by regenerating hair follicles and cloning hair, but the process is complex and needs more research.

Hair loss in androgenic alopecia may be linked to increased local androgen activities, but not to estrogen levels.

Targeting the PGD2-DP2 pathway may help treat hair loss.

Androgenetic alopecia, or hair loss, is caused by a mix of genetics, hormones, and environment, where testosterone affects hair growth and causes hair to become smaller and grow for a shorter time.

Hair transplantation is an effective hair loss treatment with two main techniques, requires careful planning, and can improve beard and eyebrows appearance.

Sex hormones affect hair growth and loss, and treatments for related hair diseases include various medications, hair transplantation, and light therapy.