6. Family History

A comprehensive family medical history is probably the most useful "genetic test." By collecting your family's health history, you can learn whether you may be at increased risk for health problems in the future and whether you can reduce your risks.

For instance, if your family has a history of heart disease, you can reduce your risk through not smoking, regular exercise and a healthy diet. Finding out your family history can benefit both you and your relatives... and it can be fun too!

Two faces in a family