Postgenomics refers to the era of research into the cellular and molecular biology of organisms that occurred after the completion of the Human Genome Project. Synonyms for the word "postgenomics" include "post-genomic", "postgenomic era", "postgenomic age" and "post-genetic". Other terms that have been used to describe this era of research include "post-omics", "postgenomic revolution", and "genomic medicine". The field of postgenomics is focused on understanding how genes and their interactions with other factors in the body contribute to health and disease. This new era of research has helped researchers and clinicians better understand how to prevent, diagnose, and treat a wide variety of diseases, including cancer, cardiovascular disease, and rare genetic disorders.