Leading hair specialists reveal the science behind hair loss, sharing vital insights about when normal shedding becomes a sign of deeper health issues.

People can lose a lot of weight through dieting or after surgery, especially if you have bariatric surgery, the kind that ...

Hair growth is a continuous process. There are four stages of hair growth: anagen, catagen, telogen, and exogen. Each stage ...

Your hair grows in a cycle of four stages or phases. The stages are anagen (growth stage), catagen (regression stage), telogen (resting stage), and exogen (shedding stage). Each hair follicle ...

Hair length depends on the hair growth cycle. A hair follicle can either be in the active growth phase called anagen or the rest phase called catagen. 6 Stimulatory signals trigger the proliferation ...

At 24 to 28 weeks gestation, the anagen hair follicles evolve to a short catagen phase in which the follicles involute. [6] Telogen hair follicles are those in the final resting phase before the ...

“Hair growth occurs in cycles and three distinct phases: the anagen or growing phase, the catagen or transitional phase, and the telogen or resting phase. Shedding occurs when rest is prolonged ...

Anagen First phase in hair cycle characterized by growth of hair follicles. Catagen Second phase in hair cycle. Short interphase between anagen and telogen hair phase, characterized by involution ...