Biology of Reproduction: The Epigenetics of Sperm

If DNA is the cookbook that cells can use to "build" your body, epigenetics is the cook that helps the body read and mix together our genetic recipe. Epigenetics is the study of how external and environmental factors can impact our DNA’s gene expression without changing the DNA itself. New research shows that epigenetic markers on sperm can assess risk for male factor infertility and poor embryo development.