Researchers are beginning to expand the field of prenatal genetic testing even further, using it to identify potential developmental delays and intellectual disabilities such as autism.
Genetic testing can also reveal risk factors you may have inherited from your parents, such as a high risk for breast or colon cancer. While this genetic risk factor does not guarantee you will get the disease, it does increase your chances; knowing about the risk may help you take preventive steps.
Help you lose weight
A growing body of research suggests that our ability to lose weight -- or gain 10 pounds by simply looking at a piece of chocolate -- is shaped in large part by our genes.
Scientists have identified several gene variants that may predispose us, and our children, to obesity. Rodent studies have also shown that up to 80 percent of body fat is regulated by our genes, according to TIME.
That said, we wouldn't search for a customized DNA Diet just yet. While there is a genetic component to obesity, our understanding of it is limited, says CNN diet and fitness expert Dr. Melina Jampolis. Researchers are still trying to figure out how genetics, nutrition and exercise are related so we can help people lose weight and keep it off.