Premature hair graying (PHG) is the early loss of natural hair color, influenced by genetic, biological, and environmental factors. This review discusses the significant psychological impacts of PHG and explores its underlying mechanisms, …

2017年9月18日 · Investigating the factors associated with premature hair graying (PHG) is a necessary step toward understanding risk factors for graying as well as the risk for developing systemic disease that PHG may portend. In this study, we investigate a variety of physiological, psychological, and lifestyle factors and their potential associations with PHG.

Premature hair greying (PHG) is especially important as a cause of low self-confidence, often impeding social life in young people. Moreover, because of the strong association between ageing and hair greying, many studies have been showed that premature greying is a predictor of some severe systemic disease [ 3 ].

Premature hair graying (PHG) is the early loss of natural hair color, influenced by genetic, biological, and environmental factors. This review discusses the significant psychological impacts of PHG and explores its underlying mechanisms, …

4 天之前 · Premature Hair Graying (PHG) is defined as graying of hair before the age of 20 years in Whites, 25years in Asians and 30 years in Africans. Knowledge on premature hair graying (PHG) is coupled with major concept of partial or complete loss of melanogenesis that leads to the production of pheomelanin as well as eumelanin.

The term premature hair graying (PHG) or premature canities is used when graying occurs before the age of 20 in European, 25 in Asians, and 30 in Africans. Graying of hair is a physiological phenomenon, and by the age of 50 years, 50% of the population have at least 50% gray hair known as the 50/50/50 rule of thumb.[ 2 ]

2021年10月1日 · Premature graying of hair (PHG) is defined as graying of hair before the age of 20 years in Caucasians and before 30 years in Blacks. Several factors contribute to development of hair graying as genetics, environmental factors, life style and stressful events.

Background: Canities, or hair graying, is believed to be driven by the cytotoxic effect of reactive oxygen species on follicular melanocytes, thus raising the concern that premature hair graying (PHG) may represent an outward sign of systemic oxidative stress.

Background: Premature hair greying (PHG) is a complex phenomenon influenced by various factors. Systemic redox balance plays a crucial role in maintaining hair pigmentation and growth. The present study aimed to investigate systemic redox balance and trace element levels in subjects with PHG and healthy controls. Materials and Methods: This ...

2025年3月5日 · Premature hair greying (PHG) is a dermatological condition characterized by the loss of hair pigment before the age of 25 years. While genetic predisposition plays a significant role, emerging evidence suggests that endocrine and metabolic disturbances, such as thyroid dysfunction and glycemic imbalances, may contribute to its pathogenesis.