WHAT IS EPIGENETICS? Epigenetics is an emerging field of science that studies alterations in gene expression caused by factors other than changes in the DNA sequence. Epigenetics: The Death of the Genetic Theory of Disease Transmission is the result of decades of research and its findings that could be as critical to our understanding of human health as Pasteur's research in bacteriology. Elijah Joshua has dedicated his life work to identifying connections between certain nutritional deficiencies and a range of maladies, formerly thought to be hereditary, including Cystic Fibrosis and Muscular Dystrophy.