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Thicker hair grows faster; hair loss patients have slower growth.

Different ethnicities and treatments affect human hair strength and structure.

Heat transfer in hair is slower in groups of hair, increasing the risk of damage from high-temperature styling tools.

Adult stem cells from rat whisker follicles can regenerate hair follicles and sebaceous glands.

Hair texture changes with age due to varying levels of lipids.

Finasteride reverses early hair loss and promotes growth.

The study found that nerve signals are stronger when there are more connection points, but not necessarily denser, along the nerve's path in the spine.

The new stiffness test works well for gels but not for sprays.

Hair can naturally regain color after greying, and this change may be linked to stress levels.

Hair can naturally regain color, and stress might influence greying and its reversal.

Certain treatments can increase protein binding to natural hair but are less effective on permed hair.

A new tool can analyze hair to detect changes due to hormones, genetics, and aging.

Researchers concluded that safe hair follicle extraction limits in FUE vary by individual characteristics and proposed a method to calculate these limits to maintain appearance.

PIXE is an effective method to analyze hair's elemental composition.

The HairCheck® device is effective for measuring hair loss and growth in people with alopecia.

Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.

Scientists created a non-toxic, sugar-based hair product that can style hair without damage.

The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.

Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.

The new automatic tool accurately measures hair thickness and is reliable.

Different populations have distinct hair structures related to their ancestry.

In situ DNA labeling in hair can help predict forensic DNA analysis success.

TrichoScan often makes mistakes and needs improvement for correct hair growth analysis.

Human head hair proteins can be typed into eight distinct patterns, useful for genetic and forensic investigations.

Chemical hair straightening significantly reduces detectable drug levels in hair.

Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.

Older age and certain lifestyles are linked to thinner, weaker hair, while how you see your hair relates to its thickness.

Acute telogen effluvium can be resolved by addressing causes, but chronic telogen effluvium is harder to treat.

Lipids are important for healthy hair, but their exact role is not fully understood and needs more research.

Hair grays due to oxidative stress and fewer functioning melanocytes.