Edi Stark looks at the burgeoning field of epigenetics. Research suggests that chemical changes within our bodies, caused by our lifestyles, could have a lasting effect on our grandchildren's health. Edi meets the scientists whose work is quietly revolutionising the way we think about inheritance and evolution.
Edi Stark looks at the burgeoning field of epigenetics, which determines whether genes are turned on or off. Until recently, the patterns of epigenetic marks on our DNA were thought to be fixed. New research, however, has shown that they can change through our lifetimes and that some of those changes can play a role in diseases, particularly cancer.