6 Life-Changing Ways DNA Testing, DNA testing has left the scientific laboratory far behind. Consumers can now learn about their ancestry, genetic traits, family relationships and some health-related genetic factors from DNA tests. As testing technology becomes more affordable, lots of people are getting curious about what their DNA can tell them about who they are.
But what can DNA testing really do for your day-to-day life?
The answer depends on the type of test you choose , and how the results are interpreted . DNA testing is not a crystal ball, and genetic result does not automatically determine your future. But the information can sometimes give you useful clues to help you understand yourself, your family history and some aspects of your health.
In this guide, we talk about 6 life-changing ways that DNA testing can change your life for the better. From finding out your ancestry to understanding inherited health risks better.
1.Learn More About Your Family History
One of the most common reasons people get their DNA tested is to learn about their ancestry.
Traditional family research involves birth certificates, old photographs, family lore, immigration documents and historical records. DNA testing adds another dimension to that research by comparing parts of your DNA to reference populations and other people that have taken the same test.
Depending on the testing company and its database, you may receive an ancestry estimate showing genetic ties to different parts of the world.
These findings may be of particular interest to an individual who has little knowledge of his or her family background.
DNA testing can help you:
Discover where your ancestors might have come from
Find genetic connections with distant relatives
Explore how families move
Verify or research family stories
Find relatives you didn’t know you had who have also tested
Ancestry estimates are just estimates, and it’s important to remember that. Different companies will yield slightly different results because they use different reference populations and methods.
But DNA testing can be an interesting place to start when researching your family tree.
2.Discover Some Genetic Health Factors
Another potential use of DNA testing is to learn about genetic factors that are associated with certain health conditions.
Some genetic tests examine specific variants that have been studied in relation to particular diseases or health traits. Depending on the test, results may tell you if you have certain genetic variants.
In some cases, this information can help people engage in more informed conversations with a qualified healthcare professional.
There is, however, an important difference between genetic risk and actual disease.
Having a genetic variant associated with a condition does not mean that you will develop that condition. The same way, not having a particular variant does not mean that you will never get a disease.
There are many factors that influence your health such as:
Age Genetics Lifestyle Environment
Family Hx
Food
Training
Other biological factors
Therefore, health-related DNA results should be viewed with caution and not as a diagnosis.
A professional discussion of unexpected outcomes
If you receive a potentially important health finding from a consumer DNA test, consider consulting a doctor or genetic counsellor. Sometimes clinical testing is recommended to confirm a result before making important healthcare decisions.
This is one of the most responsible uses of genetic information.
3.Find Out More About Your Genetic Traits
Not all DNA testing is for disease. Some tests are based on genetic characteristics that might determine physical characteristics or other biological differences in people.
For example, some genetic variants have been linked to traits such as:
Digestion of lactose
Taste sensation
The metabolism of caffeine
Hair features
Eye colour
Some physical characteristics
These results can be interesting because they may provide a biological explanation for some differences you may have noticed about yourself or your family.
Imagine finding out that your tolerance to certain foods is genetically determined or being able to understand why you may react differently to caffeine than another person.
Now, these findings don’t mean you need to completely change your lifestyle. Instead, they can give you more information that may help you understand your body.
4.Discover Biological Relationships You Didn’t Know Existed
One of the most surprising things that DNA testing can do is find relatives you share genes with.
Many ancestry testing services give you the choice to opt into relative-matching databases. The system could find that you share enough DNA with someone else in the database to suggest a possible family relationship.
This can lead to surprising results.
Someone may find:
A faraway cousin
A new branch of their family, hitherto unknown
family members living overseas
Links that help fill in the blanks of a family tree
DNA matching can sometimes provide especially valuable clues in the case of adoptees or people who have little knowledge of one side of their family.
But these discoveries can be complex, emotionally as well. DNA results can reveal unexpected biological relationships or conflict with what a family has known for generations.
Before you start testing, it’s worth thinking about whether you’d be OK with possibly surprising family information.
5.Personalise Family History Research
DNA testing can change the face of traditional genealogy, too.
Imagine spending years putting together a family tree using historical records, and then using genetic matches to find people who might be on the branches of that same tree.
DNA is not a replacement for traditional genealogy. Rather, the two can work together.
Historical records can tell you who someone was, where they lived and when important events took place but DNA matches can provide biological evidence of relationships.
For example, let’s say you’ve found a potential great-great-grandparent in historical records. You may also find DNA connections to the descendants of that person’s family that may be more evidence for your research.
This can make genealogy more fun and personal.
A helpful approach to genealogy
If you’re interested in family history, try mixing:
Dna test
Birth and marriage registers
Census statistics
Immigration papers
Photographs of family
Conversations with old relatives
Cemetery & Historical Records
Usually multiple sources are more reliable than one DNA result.
6.Inspire Smarter Conversations About Lifestyles
DNA information can also sometimes encourage people to be more interested in their health and lifestyle.
For example, finding out a genetic trait may prompt someone to ask more intelligent questions about nutrition, exercise, sleep or preventative healthcare.
But DNA is only part of the story, not a step-by-step set of instructions for a lifestyle.
What is in a person’s genes does not tell you everything you need to know about the person’s diet, exercise needs, or medical choices.
Genetic information is instead integrated into a larger conversation about:
Personal health history.
Family history of disease
Living today
Physical Examination
Medical advice
Personal objectives
This method could help people avoid making drastic decisions based on a consumer DNA report.
What is the DNA Testing Process?
The procedure is usually quite simple.
Most consumer DNA tests rely on a saliva sample or a cheek swab. After you collect the sample, it is sent to a laboratory to be analysed.
The laboratory analyses specific portions of your genetic material. Results will tell you about your ancestry, your genetic relatives, your traits or particular variants associated with health depending on the test.
The results are then provided through some online account or report.
The amount of information you receive is highly dependent on the company and test you select.
Some tests are primarily about ancestry; others add information about traits or health.
Are DNA Test Results Always Correct?
Genetic tests are not perfect predictors of what will happen to you in the future.
It also depends on what’s being tested.
For example, finding a particular genetic variant can be very different from figuring out an individual’s ancestry.
The percentages of ancestry are statistical estimates based on comparison with reference populations. As databases get better, companies might reinterpret results from the past.
Health-related findings should also be viewed with caution. A consumer test can detect a variant but it doesn’t necessarily tell if a person has a disease or will get a disease.”
For medically relevant questions, clinical testing and professional interpretation may be appropriate.
What About Privacy of DNA?
One of the most important issues to consider before taking a DNA test is the privacy.
You have DNA that is very personal. Check the company’s privacy policy before buying a test to see how your sample and genetic info could be stored or used.
Looking for information on:
Data Storag
Participation in research
Sharing to third parties
Law enforcement requests
Destruction of the sample
Remove my account
Choices of sharing data
Different companies have varying policies, so it’s crucial to read the terms and conditions and not assume all DNA testing companies handle information in the same way.
Should You Get a DNA Test?
That’s a personal choice.
DNA testing can be interesting and potentially useful, particularly for those interested in learning more about their ancestry, genealogy, genetic characteristics, or particular inherited health factors.
At the same time, genetic results can be confusing, or emotionally jarring.
Ask yourself before testing:
What do I want to learn about?
If you are mainly after finding out your roots, then an ancestry test might be enough.
If your aim is to get medical information, you should consider talking to a health care professional before and after testing, especially if the results could affect major health decisions.
Final words
DNA testing is becoming more popular and is revolutionising how people discover their family history and genetic information. DNA can tell you things that were hard or impossible to know just a few decades ago. From learning about your ancestors to finding relatives you didn’t see coming.
DNA testing can improve your life in 6 life-changing ways. Know your ancestry, understand genetic health factors, discover genetic traits, find biological relatives, strengthen genealogy research, and have more informed conversations about your health and lifestyle.
But DNA is only part of what makes us us. Your genes are blended with your environment, experiences, lifestyle and many other things.
The best way to use DNA testing is to think of the results as information, not destiny. If genetic results are important or medically significant, professional guidance can help you understand what they really mean.