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The technique showed that human hair has two main parts, with 68% being rigid and the rest flexible, and water swelling affects its structure.

Older people's hair becomes less shiny because it gets more uneven and curved.

Hair stiffness is higher when it has more para-like cortical cells.

Sunlight and chemical treatments change hair's internal structure differently, needing specific care.

Natural shampoos made in the lab conditioned hair better than commercial ones with chemicals.

Pollution exposure speeds up hair damage.

We don't fully understand how sunlight damages different types of hair.

Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.

The new system helps detect and track early female hair loss better.

Bleaching damages hair by reducing the quality of keratin and keratin-associated proteins.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Otter rabbit, mink, and blue fox fur can be identified by their unique hair structures.

The technique accurately identifies and evaluates hair follicle structures in skin.

Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.

Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.

Hair damage increases significantly with higher temperatures and longer heating times.

Annurca apple extract may protect mouse hair from damage by chemotherapy and could help treat hair loss without promoting cancer growth.

JAM-A helps hair regrowth in alopecia areata by protecting VCAN in skin cells.

Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.

Hair-derived material is safe and effective for skin filling.

The new method can create hair follicle-like structures but not complete hair with roots and shafts, needing more improvement.

Potassium cyanide treatment changes hair's disulfide bonds, making it more elastic.

Hair in mammals likely evolved from glandular structures, not scales.

Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.

Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.

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

The herbal shampoo is less damaging and improves hair's appearance.

Cornification is how skin cells die to form the protective outer layer of skin, hair, and nails.

Curved human hair has different structures on its convex and concave sides.

Curved human hair has different structures on each side, which might cause its shape and is similar to wool.