Changes Associated with Hair Aging

June 2021

Ana Cristina Carvalho, Byron José Figueiredo Brandão

senescent alopecia androgenetic alopecia hair growth stages pollution tobacco dermatoscopy hormonal changes genetics stress hair density hair color hair follicle senile alopecia androgenic alopecia hair growth phases smoking hormones genes

TLDR Hair aging leads to color loss and reduced density, and dermatologists are key in treating it to improve quality of life.

The document is a bibliographic review that examines the changes in hair associated with aging, such as loss of color, shine, and increased opacity, and aims to aid in the diagnosis and treatment of senescent alopecia. It includes studies from 2011 to 2021 and discusses the importance of understanding hair growth stages, the impact of external factors like pollution and tobacco, and measures to delay aging. The review differentiates between senile alopecia and androgenetic alopecia, noting that aging hair experiences rapid cycling and loss without new follicle formation, leading to reduced density and color. It also covers the role of dermatoscopy, hormonal changes, genetics, and stress in hair health. The conclusion emphasizes the crucial role of dermatologists in diagnosing and treating hair aging to improve quality of life.

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