A gray streak in hair, commonly referred to as a "silver streak", is a distinctive patch or line of hair which has lost its pigmentation and turned gray in color. This can occur naturally with age or as a result of certain medical conditions.
Gray streaks in hair have been associated with wisdom, maturity and a sense of style. In some cultures, they are seen as a sign of good luck or even a blessing. Historically, people have used various methods to achieve this look, including henna, hair dyes, and even plucking out the dark hairs.