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Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.

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

The research concluded that hyaluronic acid affects the formation and growth of hair follicle-like structures in a lab setting.

A new method improves protein analysis in hair, aiding health and disease research.

Human hair is valuable for identifying people and detecting drug use.

Cross-section trichometry is an accurate method to measure hair loss and growth.

Hair follicle development involves specific cells and genes, crucial for understanding severe skin diseases like harlequin ichthyosis.

The hole technique is faster and effective for hair transplant site creation.

Plasma hairdryers cause less hair damage than regular hot air dryers.

Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.

Adding human hair to cement can make it tougher and better insulated but also more porous.

Hair growth cycles need varied signals in space and time.

Hair curliness is caused by the arrangement and length of two different cell types.

Finger length ratios might help predict common hair loss.

Wearing a hijab doesn't cause hair loss, but how it's worn can lead to hair issues, and many affected women don't seek medical help.

The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.

A 5 cm hair sample can reveal blood type and keratin type for forensic use.

The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.

Lower iron levels are linked to longer hair loss.

Different hair growth problems are caused by genetic issues or changes in hair growth cycles, and new treatments are being developed.

Wigs and hair prosthetics boost confidence and quality of life for people with hair loss.

Each group of hair follicles on the scalp shares one muscle that helps control hair movement.

The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.

Choosing hair follicles at the same growth stage leads to more consistent hair growth experiments.

A hair restoration technique was introduced that mixes different types of hair groupings to reduce procedure time, limit damage, and potentially increase hair density, suggesting more hair can be transplanted than previously thought.