Virtue experts study find smoking addiction is due to genetic mutations

german and U.Sresearchers' study of people of different ages found that more than 50 percent of smokers who are addicted to smoking have specific genetic variantsThe study was carried out by researchers at the University of Bonn and the University of Heidelberg in Germany, as well as from Harvard Medical School in the United StatesIn their study, they found that specific genetic variants make people easy and premature to become smokers, and it is estimated that 50 to 75 percent of smokers are affected by genetic mutations, while the rest are affected by the environment, such as smoking by others or by themselves in order to relieve stressThe researchers analyzed and studied 4,300 German people of different ages who smoke and are not smokers and found that a genetic variant called TPH1 was more pronounced among smokersAnother genetic variant, called TPH2, determines the age at which smoking addiction isolder smokers, with a greater impact onwomenmiddle-aged and older smokers, andformenThe study found that the TPH gene is associated with the production of a substance called "Serotonin" that plays a key role in human sourcing and thinkingLack of this substance can lead to depression and phobias and are a risk factor for drug usersPeople with the TPH2 gene variant are more nervous and afraid than the average person, which may be one reason why they like to smoke, the researchers saidThe researchers also found an explanation for the difference between male and female smokers in older people, who typically became addicted to nicotine in the 1950s, when women's household burdenands and social pressures were much greater than they are today, even more thanmen, so in older people, women the TPH2 gene variant is higher than men , and the opposite is true (Reporter Gu Gang)