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Stretched hair has a similar structure to natural silk, showing hair's elasticity involves reversible changes within its molecules.

Stretching wool changes its structure and improves fiber alignment.

The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.

Yak hair stretches mainly due to macromolecules slipping past each other.

Atomic Force Microscopy is a more accurate way to assess hair damage and the effect of cosmetic treatments.

Hair's strength and flexibility come from its protein structure and molecular interactions.

Root hair growth slows under force, confirming a model of cell wall mechanics.

The washing machine cylinder can crack at 15 kg and 2400 rpm, which is higher than normal use.

The Aqualon SLT device measures hair stiffness and slipperiness to evaluate hair treatments.

Human hair's strength and flexibility vary by ethnicity, damage, and treatment.

Human hair's structure and properties were studied using advanced microscopes and mechanical tests.

Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.

Hair follicles respond differently to pulling forces in various regions.

The observed "toughening" in keratin was actually due to water evaporation, not a real change in keratin.

Dermatologists should use hair relaxers carefully to avoid hair and scalp damage, following specific guidelines for application and maintenance.

Certain bacteria can enhance skin regeneration.

A new device mimics hair follicle functions and detects tiny forces with high sensitivity.

Tissue-engineered skin substitutes can model junctional epidermolysis bullosa and may help develop gene therapy.

Minoxidil effectively lowers blood pressure with few side effects.

Minoxidil controls blood pressure but may cause kidney damage and needs diuretics to prevent swelling.

Children with marasmus have more resting hair follicles and thinner, less pigmented hair, showing long-term malnutrition.

Oral minoxidil 5 mg daily increases hair growth safely in men with hair loss, with minor side effects.

A man fainted and felt unwell after using a strong hair growth product, but got better when he stopped using it.

The trichoscopy-assisted hair pull test is useful for diagnosing different types of hair loss.

The pull and wash tests are simple, cost-effective ways to diagnose hair loss severity and type.

The document's conclusion cannot be provided because the document is not readable or understandable.

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

TTD hair brittleness is caused by multiple structural abnormalities.