In this class led by Dr. O'Donnell, participants learned about how genes that have been expressed (not genes that make your eyes blue, but those genes that are involved in the expression of a disease) can be "activated" or "silenced." This is wonderful news for people who experience chronic disease because there new research indicates that you, using lifestyle medicine, you may be able to "silence" a once-activated gene.
Some research about benefits (and limits) of epigenetics include journal articles about metabolic disease (Rana et al, 2016), future medical applications (Holder et al., 2017), cardiovascular epigenetics (Baccarelli et al., 2010), aging well (Rea, 2017), and review of epigenetics in literature (Pine et al., 2019)