What does the term "anagen" refer to in hair growth cycles?

The term "anagen" refers specifically to the active stage of hair growth within the hair growth cycle. During this phase, hair follicles are producing new hair cells, which leads to the visible growth of hair. The anagen phase can last several years, depending on genetic factors and the area of the body, and it is during this time that hair is longest and most robust.

The other phases related to hair growth, such as the resting phase or shedding stage, are not part of what defines anagen. The resting phase is more accurately referred to as the telogen phase, and the stage of falling out corresponds to the transition into shedding, which occurs after the anagen phase. Understanding these distinctions is crucial for recognizing the lifecycle of hair and for applying this knowledge in practices related to hair treatment and care.