According to a recent study, the fact of a parent smoking may affect their children, and even their grandchildren, by causing brain damage, largely irreversible.
Scientists have found that the continued exposure to nicotine by male subjects, in addition to the health problems it brings to the consumer, leads to changes in key sperm genes, leading to fetal health problems.
In the study conducted with mouses, which only had access to water with the infusion of small doses of nicotine, during the period of their lives in which their sperm develops, and then the animals were crossed with females, never exposed to nicotine, and DNA methylation was then detected, which could lead to brain damage of their offspring.
Although neither parent showed any kind of change, their children, of either sex, showed signs of hyperactivity, attention deficit and mental problems, and the problems did not stop here, the females of this new generation, when bred with healthy rats gave birth to rats that continued to have cerebral insufficiencies, albeit milder.
The sperm analysis of the mice originally exposed to nicotine revealed the existence of epigenetic alterations, and the reason the study focused more on the male elements was that, according to studies, the male subjects smoked more, and therefore be more exposed to harmful effects and genetic alterations.
So far, much of the studies have focused only on the harmful effects of tobacco, in particular nicotine, on the female elements, as far as effects on children are concerned.
Of course, this study while giving clues as to what should happen to humans, was carried out in laboratory mice, and these results may not represent a similar effect for humans, but one thing is certain, quite certainly, nicotine and tobacco will not.