Why do blacks and whites have body odor, while yellows are less so?

Yellow people mainly live in temperate regions, there are fewer sweat glands on the body, and the living environment and eating habits of black and white people also cause sweat glands to be more developed, and the fatty acids discharged by sweat glands are decomposed by bacteria and produce peculiar smells.

The reason why yellow people basically have no body odor is because they don't have too many apocrine glands in their physique. Body odor is caused by sweating, and there are two kinds of human sweat glands, apocrine glands sweat without taste, and apocrine glands due to the sweat discharged contains fatty acids, which are decomposed by bacteria on the body surface, producing various unsaturated fatty acids, so body odor is produced.

Because black people exercise more and sweat more, white people have strong hair, so there are questions, yellow people are not as athletic as black people, and their hair is not as good as white people, so their body odor is not heavy.

This is determined by the genes of black people, and black people's sweat glands and the like are more developed, so they cause body odor.

Mainly related to the living environment, yellow people mainly live in temperate zones, there are no apocrine glands on the body, and the environment and eating habits of black and white people have caused apocrine glands to be more developed, and the fatty acids discharged by apocrine glands will produce peculiar smells after being decomposed by bacteria.

Because yellow people have fewer sweat glands and less body hair, they don't produce much flavor, so yellow people have a lighter body odor.

I think it has a lot to do with eating habits and lifestyle habits.

"Fox odor" is not common in China, why is the chance of it as high as 90% among white people?

Black people have a slow metabolism, less body fluid secretion, slow hair growth, sparse hair, underdeveloped sweat glands, and strong sweating function, so the yellow fox odor is relatively less.

This is due to the fact that our body structure is somewhat different, this is due to the influence of the environment, the places where black and white people live are prone to the symptoms of fox odor, and the antiperspirant beads were developed by them at the beginning.

Fox odor is a problem of genes, yellow people have no such genes, most of the fox odor is born, so this has a lot to do with heredity, yellow people have no fox odor for generations.

1. Physiology.

The staple food of Westerners is mostly meat, with a high protein content, which is converted into various amino acids after digestion by the human body, and some of them will be discharged through body fluids.

2. It is related to genes.

From the perspective of modern biology, when the earliest humans had not yet gone out of Africa, they all had fox odor. When humans entered the temperate zone of East Asia, a mutation occurred at base 538 of the abcc11 gene in the middle of chromosome 16, resulting in a decrease in apocrine secretion. Therefore, 95% of people in East Asian countries do not have fox odor, while people in Europe, America and African countries still have fox odor, and their body odor will naturally be heavier.

3. It is related to body hair.

People in European and American countries have about 3 4 people with a gross weight, and the body hair weight is full of sweat gland secretion, and the secretion of sweat glands reacts with ammonia enzymes to produce a smell with the smell of onion rot.