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Gene therapy, anyone!

The age of Epigenetics: the ultimate mystery of inheritance has arrived bringing with it many more things to ponder about our lifestyle.  If you are a smoker not only can your second-hand smoke cause cancer but if you are male and started smoking before puberty you can cause your sons to have significantly higher rates of obesity. However, if you were exposed to famine your grandsons will probably  have less heart-disease then if food were plenty (then they might be more susceptible to diabetes).  Epigenetics "on the gene" is about heritable traits that do not involve changes to the underlying DNA sequence. It is about how  your environment and lifestyle choices can impact your phsyiology so deeply that it affects the next several generations. This book is a great read, written with the lay person in mind. I couldn't put it down.