The human body is made up of about 50 trillion cells, where the chromosomes are found in the cell nuclei. These are made up of a double helix of DNA that carries the genetic code, our architectural blueprint. This blueprint consists of about 3.2 billion letters per person, 1% of which is the area we call the genes. Each gene is generally a unique command for the body with a unique function. Some predispose us to blue eyes, others play a role in digestion and absorption of nutrients in the intestines.
Unfortunately, our genes are not error-free, and we all carry certain genetic variations that we inherited from our parents, or that were created by chance and that have a negative impact on our health. These genetic variations are common and usually only represent differences in the letters of the genetic code. As a result, they weaken our immunity, increase the risk of heart attack or lead to impaired vision. We are all carriers of different deviations, variations, and therefore some of us have a higher risk of heart attack and others are more sensitive to lactose. The risk of disease changes within families and individuals.
These genetic variations, however, do not necessarily mean the occurrence of a certain disease, but only predict a higher susceptibility, predisposition, risk. The actual occurrence of the disease depends on external factors related to the environment and lifestyle. For example, lactose sensitivity only appears after milk consumption, or if the gene that impacts iron absorption is altered, intervention is needed to prevent the development of disease due to excessive iron storage. , called hemochromatosis.
According to experts, each of us carries about 2,000 genetic deviations, variations that can negatively affect our health and lead to disease. Genetic disorders can be caused, for example, by radioactivity, fried foods, UV rays, etc. When an egg is fertilized, each fetus inherits half of its genes from the mother and the other half from the father. It may happen that the whole generation or line is a carrier, but this may not necessarily be the case, and in some individuals it will not show up at all.
All of this means that we are all unique, and due to the variety of genetic variations and errors, each of us carries different health conditions. Thanks to the latest technologies, we are now able to detect these shortcomings and draw attention to the health risks for the individual in question. Thanks to this knowledge of the new generation of preventive medicine, we can intervene upstream, prevent the appearance of the disease and aim to maintain health and well-being.
Here’s what genetic testing can tell us about our bodies.