Alexmahone said:What kind of evolutionary advantage does black hair confer? I would have expected most people (young as well as old) to have white hair because it reflects heat and therefore keeps heads cool.
dwsmith said:Maybe it is like having light eyes. Having light eyes is a mutation from dark. Maybe all the people with hair that isn't black or brown natural had a mutation in their genes.
Alexmahone said:But why should black hair be normal in the first place?
Prove It said:Isn't it because dark hair genes are dominant, while lighter hair genes are recessive?
Alexmahone said:But why are dark hair genes dominant? (Sorry if this is an ignorant question.)
Alexmahone said:What kind of evolutionary advantage does black hair confer? I would have expected most people (young as well as old) to have white hair because it reflects heat and therefore keeps heads cool.
It's like if you ask why when you mix white with black, you obtain something nearer to black than white (in equal quantities).Alexmahone said:But why are dark hair genes dominant? (Sorry if this is an ignorant question.)
Moo said:It's like if you ask why when you mix white with black, you obtain something nearer to black than white (in equal quantities).
Alexmahone said:If we mix equal quantities of black and white, don't we obtain something equidistant from black and white?
anky2930 said:In my opinion its natural and its best answer is available to god himself.
The most common hair color is determined by genetics. The gene for black hair is dominant, meaning it is more likely to be passed down from parents to their offspring. This is why most people have black hair.
No, black hair can be found in people of various races and ethnicities. It is a common misconception that black hair is only found in people of African descent. In reality, people of Asian, Native American, and Pacific Islander descent can also have naturally black hair.
The amount and type of pigment, called melanin, present in the hair shaft determines the shade of black hair. People with more eumelanin, a dark brown pigment, will have darker black hair. On the other hand, people with less eumelanin and more pheomelanin, a red pigment, will have lighter black hair.
Yes, black hair can turn a different color due to genetics, aging, and environmental factors. Some people may experience graying of their black hair as they age, as the production of melanin decreases. Exposure to sunlight, chemicals, and certain hair products can also cause black hair to fade or change color.
There are no significant advantages or disadvantages to having black hair. It is simply a physical characteristic determined by genetics. However, people with black hair may experience different cultural perceptions and stereotypes based on their hair color. They may also have unique hair care needs, as black hair tends to be more coarse and requires extra moisture and maintenance.