过敏与治疗杂志

抽象的

Electric Hair Follicular Stimulation

Tawana D Furbush

Electric Follicle Stimulation (EFS) is a low frequency treatment to encourage hair growth and density. The follicle is the root of the hair shaft that receives nourishment and blood supply from the papilla which contributes to hair growth. Follicles can produce a single to multiple hairs from one follicle and the life cycle of hair is in three phases: Anagen, Catagen and Telogen. The Anagen phase is the growth phase. This phase lasts an average of 3-5 years. So a full-length hair averages 24 inches; give or take. Genetics can serve as a blueprint. The anagen phase is generally longer in people of Asian and Indian descent, and can last as long as 7 years, therefore, growing hair longer than the average length during this phase.The Catagen phase is the transitional phase. It is a short transitional phase of the hair growth cycle between anagen and telogen that usually lasts between 10 to 20 days. This is where the lower portion of the hair follicle regresses and hair growth ends.The Telogen phase is the resting phase. When the body is subjected to extreme stress, as much as 70 percent of hair can prematurely enter the telogen phase and begin to fall, causing a noticeable loss of hair. This condition is called Telogen Effluvium (TE). How can you tell the difference between Androgenetic Alopecia and Telogen Effluvium?TE causes hair loss all over in a diffuse manner. True Androgenetic Alopecia has less density on the top middle and front of the scalp compared to the back and sides of the scalp; commonly called male pattern baldness and sometimes called the ‘cul-de-sac’. This can stem from increased age, male hormones and heredity. In Telogen Effluvium, the density is reduced equally all over the scalp. This is more common with female pattern hair loss