According to research experts from New Mexico (USA), long-term smoking can cause changes in a person’s DNA and cause serious mutations.
In particular this applies to cells that form our respiratory system. Moreover, the researchers note that these mutations are able to survive even if people quit smoking and begin to live a healthy lifestyle.
As part of the experiments it was proved that the number of cigarettes smoked during the whole life period directly affects the number of specific DNA changes at the cellular level.
The more a person smokes, the more he has developed various gene mutations. The total number of such mutations may be up to 150 and it is only in one cell.Source: www.goods-eu.com