“A growing body of research is revealing associations between birth defects and a father’s age, alcohol use and environmental factors, say researchers. They say these defects result from epigenetic alterations that can potentially affect multiple generations.”
Jonathan Day, Soham Savani, Benjamin D Krempley, Matthew Nguyen, Joanna B Kitlinska. Influence of paternal preconception exposures on their offspring: through epigenetics to phenotype. Am J Stem Cells, 2016;5(1):11-18.