the life experiences of grandparents and even great-grandparents alter their eggs and sperm so indelibly that the change is passed on to their children, grandchildren, and beyond. It’s called transgenerational epigenetic inheritance
the phenomenon in which something in the environment alters the health not only of the individual exposed to it, but also of that individual’s descendants.
Other labs, too, are finding that experiences—everything from a lab animal being exposed to a toxic chemical to a person smoking, being malnourished in childhood, or overeating—leaves an imprint on eggs or sperm, an imprint so tenacious that it affects not only those individuals’ children but their grandchildren as well.
The result raises the intriguing possibility that the childhood-obesity epidemic is at least in part due to alterations in sperm caused by fathers-to-be eating a high-fat diet. After all, while it’s fine to blame kids’ couch-potato ways and fattening diets, that does not explain why obesity in babies has risen 73 percent since 1980.
how good your memory is during adolescence “can be influenced by environmental stimulation experienced by one’s mother during her youth
Very possible effects : future decrease in classroom engagement and success at math, increased victimization by classmates, have a more sedentary lifestyle, higher consumption of junk food and, ultimately, higher body mass index.