A growing body of research in recent years suggests that genetic factors play a significant role in the etiology of snoring and sleep apnea syndrome (malignant snoring, breath-holding at night). Researchers have found that first-degree relatives (e.g., parents, siblings) of patients with sleep apnea syndrome have an increased risk of the disease, and the greater the number of relatives with the disease, the greater the risk of the disease. Relatives of patients have been reported to have a twofold higher risk of the disease than the rest of the population. Studies on twins have confirmed that identical twins are more likely to suffer from habitual snoring than heterozygous twins, meaning that two people with identical genes are more likely to have snoring at the same time than siblings at the same time. This is a good proof of the role of genetic genes in the occurrence of snoring, and the study projected that 52% of whether a person snores or not is determined by genetic factors. So why is snoring genetic? The explanation is that multiple risk factors associated with snoring and sleep apnea syndrome are hereditary. These risk factors include obesity, airway soft tissue distribution near the upper airway (nose, throat), jaw structure and respiratory control function. It is known that children inherit some genetic characteristics from their parents, such as face shape, body shape, etc. This is the case of appearance. Similarly the internal shape of the head and face will also be influenced by the parents, for example, people with small jaws are prone to snoring or sleep apnea syndrome, and if his child also inherits the jaw feature of small jaws, then he also inherits the risk of being prone to sleep apnea. Moreover, nearly 50% of obesity is genetically determined, and studies of twins in normal populations have shown that 70% of the determination of obesity can be explained by genetic correlates and 25% of fat distribution characteristics can be explained by genetics. In addition, we know that snoring is caused by the sound of airflow through the narrowed part of the upper airway, and that there are muscles in the human pharynx that open the pharyngeal cavity, and that the contraction of these muscles has a critical role in avoiding snoring and sleep apnea. Studies have found that the regulation of the activity of these upper airway dilators is also influenced by genetics, meaning that if the parents have poor regulation, the child may also have poor regulation. In conclusion, in addition to environmental factors, genetic factors involving multiple genes play a mild to moderate role in the development of snoring and apnea. So, if your parents snore at home, will you inevitably snore too? How can you prevent yourself from snoring? Scientific research has discovered some genes related to snoring, but it is not yet possible to effectively predict the occurrence of snoring from the genetic point of view or to take gene therapy to change the inherited genes. So that if there is such inheritance in the family, one should pay more attention from the living habits, especially to develop good eating and sleeping habits, avoid obesity and try to sleep on the side. For children snoring need to seek medical consultation in time to avoid developing a craniofacial form that is prone to snoring and causing snoring in adulthood.