Scientists have uncovered another danger of Smoking

Smoking triggers long-term changes in the activity of genes, writes NBC News. The smoke is in contact with the human body cells and causes the process of methylation in which a methyl group is attached to different parts of the DNA.

The study assessed the blood samples of smokers and people without addictions. It takes into account the experience of Smoking and a way of life, and the presence of chronic diseases.

It turned out that DNA methylation is the main harm that cigarettes cause genetic apparatus of man. Bad habit affects the activity of seven of thousands of genes. Some of them are connected with heart disease, others to the development of cancer.

Interesting another fact. Immediate effect after the rejection of bad habits does not occur. Only five years begin to develop recovery processes. In General, the recovery of DNA is not less than 30 years.

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