Hello, I'm an expert in the field of human biology and genetics. I can provide you with information on when gray hair typically begins to appear.

Gray hair is a natural part of the aging process and is caused by the gradual loss of melanocytes, which are the cells responsible for producing the pigment melanin that gives hair its color. The age at which people start to get gray hair varies widely and is influenced by several factors, including genetics, ethnicity, stress, and overall health.

In general, people tend to notice their first gray hairs in their 30s or 40s, but this can range from as early as the late teens to as late as the 50s or beyond. On average, Caucasian individuals may start to see gray hairs as early as their 20s, while Asian and African individuals may not see gray hairs until their 40s or later due to differences in hair structure and melanin production.

It's important to note that while genetics plays a significant role, lifestyle factors such as smoking, a poor diet, and exposure to environmental pollutants can also accelerate the graying process.

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��On average, 50 percent of the population will have 50 percent gray hair by the age of 50,�� says Eidelman. Gender seems to play a role as well: Men start graying closer to 30, while women begin to notice gray hairs around 35, Schweiger notes.read more >>