Beauty genetics: how is appearance inherited?

The inheritance of eye color and body constitution are long-studied points.

What other features of appearance do we get genetically - about this in the social network told the expert of the talk show "Taumnitsi DNA" at STB, clinical geneticist Lyudmila Turova.

According to the expert, we inherited from our parents and grandparents not only our height, eye color, hair and face shape. There are many more features of appearance, not so obvious, but no less significant, for which we also need to thank genes.

Chest. Breast size is the result of the sum of two components: adipose tissue and the breast itself. It is because of adipose tissue that the size of the breast can change if you lose a lot of weight or, conversely, gain weight. But the size of the glands cannot be changed (well, if we are not talking about plastic), this is the result of the work of genes. Today, several genes are already known (ZNF703, ESR1, INHBB, ZNF365, PTHLH and AREG), which are responsible for the size of the décolleté. Moreover, some of them determine the susceptibility of the mammary glands to female hormones - estrogens, they increase the bust, but at the same time, in large quantities, they can cause cancer.

instagram viewer

Hair. Many brands promise to give your hair incredible volume, and in some cases it works. But only in part: natural thickness is the result of gene expression. On average, each human hair has a width of 0.04 mm to 0.1 mm, and it is determined by the diameter of the hair follicle. It is there that the dividing cells give rise to hair. How actively and quickly these cells will divide is decided by the EDAR gene. One of the variants of this gene can be called a real gift of ancestors (the residents were most fortunate with it Asia and Africa), because it provides a special activity of cells and, as a result, thick, strong curls.

Nose. Facial features is a very promising topic from the point of view of study, but at the same time, it is difficult and still insufficiently studied. Today, several genes are known that influence the formation of a chiseled graceful nose or a nose in the shape of a potato. Moreover, each gene is responsible for its own point of the program: for example, the DCHS2 gene regulates the connection of cells in dense tissues and so shape of the septum and wings of the nose, and the SUPT3H and RUNX2 genes affect the growth of bone and cartilage tissue and the width nose bridge.

Leather. Moisture content, elasticity, the amount of antioxidants and photoaging - these parameters can already be characterized based on genetics. For example, if the check shows a gene associated with insufficient moisture, then the beautician excludes from care products with acids (especially salicylic acid), which lead to rapid drying skin. Severe acne is also often genetically related.

The information in the genes will help to identify the individual causes of aging, baldness, various inflammatory processes on the skin and other important problems; choose the best cosmetics and care procedures, personalize the nutrition program and dietary supplements and adjust the lifestyle to preserve beauty and youth in any age.