We inherit our genes from our parents at birth. Later in life the genetic material can be changed by epigenetic modifications, i.e. chemical alterations of the DNA the affect the activity of the genes. Such alterations are normally caused by ageing but can also result from environmental factors and lifestyle.
In a study recently published in the journal Human Molecular Genetics the researchers have examined how the genes are changed in smokers and users of non-smoke tobacco. They could identify a large number of genes that were altered in smokers but found no such effect of non-smoke tobacco.
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Read the full, original story: Smoking changes our genes
