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Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Some drugs can cause hair loss, change hair color and shape, or increase hair growth, and treatment may involve stopping the drug or using specific hair growth treatments.

The document concludes that hair curvature can be explained by the growth patterns caused by the shape and separation of cells in the hair follicle and is affected by specific molecular pathways.

Researchers created a new system to classify male baldness, finding six types and a common hairline shape, to improve hair loss treatments.

The KRTAP7-1 gene is very similar across different cattle and yak breeds and likely plays a role in hair strength and shape.

Scientists made a mouse that shows how a specific protein in the skin changes and affects hair growth and shape.

New hair after alopecia areata can be thinner and change color but usually keeps the same shape.

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

The model suggests that scalp tension could lead to hair loss, with factors like blood vessel hardening, enlarged oil glands, and poor microcirculation also playing a role. It also hints at a possible link between skull shape and baldness pattern.

Dr. Russell Knudsen's system classifies hair grafts by class, shape, and size for clearer communication in hair restoration surgery.

Surgical methods for hair loss due to scarring should be chosen based on the size, location, and shape of the area, with most patients seeing good results.

YouTube videos of men using Finasteride and Minoxidil for hair and beard growth form a unique self-tracking genre that helps build community and shape male identity.

Dermal papillae cells, important for hair growth, come from multiple cell lines and can be formed by skin cells, regardless of their origin or hair cycle phase. These cells rarely divide, but their ability to shape tissue may contribute to their efficiency in inducing hair growth.

FGFs-4, -8, and -9 have overlapping roles and are repeatedly used in tooth development.

The BASP classification is a detailed and accurate way to categorize hair loss in both men and women.

Mixed-race individuals have hair with varied shapes and more root damage.

Human hair varies widely and should be classified by curl type rather than race.

Different ethnic hair traits must be considered for successful hair restoration surgery to achieve natural-looking results.

Tissue expansion for head and neck reconstruction has good blood supply and doesn't need capsule removal, but expect temporary hair loss with normal growth resuming after 6-8 months.

Future hormone therapy trials should match the diverse needs and priorities of the gender-diverse community.

The document concludes that hair transplantation for Asians should consider unique scalp and hair traits, use small grafts, and combine surgery with medication like finasteride and minoxidil for best results.

Different populations have distinct hair structures related to their ancestry.

The procedure effectively created natural-looking hairlines and improved facial balance in female patients.

Afro-textured hair needs specialized care due to its unique genetic and structural properties.

Boswellia may improve skin inflammation symptoms and positively influence hair growth in mice.

Curly and straight hair differ in how their internal fibers are arranged.

Looking older on the outside might be linked to aging faster on the inside and can be affected by lifestyle choices and health risks.

A new method accurately classifies hair types, showing global hair diversity.

Rhomboid-shaped minigrafts, measuring 1.5 x 1.5 mm, lead to fewer complications and better results in hair restoration surgery compared to square or rectangular ones.