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In February 2001, scientists made history when they decoded the human genome. That discovery opened the door to a medical and commercial revolution that is still evolving. DNA testing allows us to see into our collective histories and better understand our bodies, creating new possibilities for longer, healthier lives. The scientific community is learning how to navigate the new questions DNA testing triggers, which means that seeing all sides of the argument is critical.

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1. Discovering Ancestry

There are plenty of companies offering insight into individual family histories with a swab of the cheek or some saliva in a tube. Personal DNA testing is helping people understand their heritage lines, which may shed insight into certain habits, traits, and famous or infamous family members. Depending on which kits you choose, you could learn more about your descendants from the last 500 years.

DNA testing ancestry Ben-Schonewille / Getty Images
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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.