What we do in our lives may be passed on as changes in children. How this might happen in the genome through modified histones, as managers of DNA:-"In a comprehensive study, scientists at the Friedrich Miescher Institute for Biomedical Research identified the molecular logic underlying the retention of histones and their marks during the development of the sperm. These findings set the stage to address a fundamental question in epigenetics: whether and how chromatin marks in sperm are passed on to the next generation and contribute the epigenetic inheritance of traits shaped by experience or the environment." -Read more at: http://phys.org/news/2013-06-stage-epigenetic.html#jCp