Blonde hair is primarily determined by genetic factors, and hair color varies mainly according to the amount and type of pigment called melanin. Blonde hair is most commonly found in Europe, especially in Northern Europe, but it can also appear in other regions depending on genetics. Let's take a closer look at the causes and history of blonde hair.

Causes of Blonde Hair

1. Genetic Factors:

   • Blonde hair appears when there is a low amount of the dark pigment eumelanin and a relatively high amount of the pigment pheomelanin. Pheomelanin forms pigments such as blonde, red, and brown, and the more of this pigment present, the blonder the hair becomes.
   • The blonde gene is primarily passed down as a recessive trait. This means that even if one parent has blonde hair, if the other parent has brown or black hair, both parents are likely to need to carry the blonde gene for it to be expressed in their child.
   • The MC1R gene is also associated with blonde hair. This gene affects skin and hair color, and variations in this gene can lead to blonde hair.

2. Regional Characteristics:

   • Blonde hair is most common in Northern European regions (Sweden, Norway, Finland, etc.). People in these areas produce less natural pigment and generate less dark pigment in their skin and hair due to the low sunlight, leading to a higher occurrence of blonde hair.
   • Climate and environment can also have an impact. When there is less sunlight, melanin production due to ultraviolet rays decreases, which can result in hair appearing blonde or light-colored.

History of Blonde Hair

1. Ancient Civilizations and Blonde Hair:

   • In ancient civilizations, blonde hair was considered a divine or aesthetic trait. For example, in ancient Greece and Rome, blonde was recognized as a color symbolizing beauty and divinity, and some mythological gods were depicted as blonde.
   • In ancient Egypt, individuals with blonde hair also appeared, and there were instances where blonde hair was preferred among royalty or the aristocracy.

2. 19th and 20th Centuries:

   • In the 19th and early 20th centuries, especially in Europe, blonde hair was perceived as attractive. Influenced by the film and fashion industries, blonde hair became a symbol of the upper class and modern beauty.
   • With the prevalence of blonde actresses in Hollywood films, blonde hair was regarded as the ideal standard of beauty, which was further reinforced through media.

3. Present Day:

   • Today, blonde hair is also seen as a beauty preference, and some people desire blonde hair and choose to dye it. In particular, blonde dyeing is one of the popular beauty trends worldwide.
   • Additionally, blonde hair is still commonly seen in regions like Northern Europe and is predominantly found among people of European descent. However, recently, there have been many instances of individuals with blonde hair from various ethnicities and races.

Blonde hair occurs due to genetic factors and appears in hair that contains a high amount of pheomelanin pigment. It is commonly found in Northern Europe and has historically been regarded as a color symbolizing divinity or aesthetic traits. Today, many people pursue blonde hair through beauty preferences or dyeing.