What is DNA and why does it matter for your health?
DNA is the genetic material found in every cell of a living organism. It acts as the body’s blueprint — encoding both internal and external physical characteristics. Key facts about DNA:
- Physical traits encoded in DNA can be passed down to future generations
- Traits that predispose a person to certain diseases can also be inherited
- DNA testing can confirm whether a person has a genetic condition or calculate their percentage risk of developing one
Fun fact: The human body is made up of trillions of cells — every single one originating from a single cell that divided to form the entire body. Each cell contains a complete genetic structure including DNA, genes, and chromosomes, all working together to determine the body’s characteristics and internal chemical processes.
What is genetic testing (DNA testing)?
Genetic testing is a technology that examines changes in genes, chromosomes, and proteins in the body. It is used in medicine and personal health planning to:
- Confirm whether a person has a genetic condition — such as Fragile X syndrome or certain types of cancer
- Calculate the likelihood of developing specific diseases
- Assess the risk of passing genetic conditions on to future children
What are the benefits of DNA testing?
While genetics plays a significant role in health, individual environment and lifestyle factors also contribute. DNA testing offers a detailed, personalized analysis of your genetic code with the following key benefits:
- Clearly identifies whether you carry a genetic disease or condition
- Determines the likelihood of passing a genetic condition to your children — either now or in the future
- Diagnoses genetic diseases, particularly when symptoms are already present
- Supports planning for the prevention and treatment of cancer — both existing and potential
What diseases can DNA testing identify?
It is important to understand that a positive result does not always mean you have the disease — it may indicate a signal or elevated risk. DNA testing can provide useful insights into the following conditions:
- Down syndrome
- Huntington’s disease
- Cystic fibrosis
- Sickle cell disease
- Phenylketonuria (PKU)
- Colorectal cancer
- Breast cancer
What samples are used for DNA testing?
The type of sample collected depends on the purpose of the test. Common sample types include:
- Blood draw
- Cheek swab (buccal cells)
- Amniotic fluid (for prenatal testing)
Once collected, the sample is sent to a laboratory for genetic analysis. Results typically take 30 days or more, depending on the type of test and the provider’s process.
How is the Circle DNA test different from standard DNA testing?
While there are many types of genetic tests designed for different purposes, the Circle DNA test available at Bangkok Hospital Pattaya offers a deeper, more personalized approach:
- Uses a simple cheek swab sample
- Analyzes individual-level genetic data for a comprehensive health profile
- Assesses risk for serious diseases
- Provides personalized health recommendations covering:
- Nutrition and dietary choices
- Weight management
- Exercise and metabolism
- Sleep quality
- Hormone levels
- Sensitivity to environmental pollutants
DNA testing is highly accurate — for some conditions, results can clearly confirm whether you have a disease or not. For others, it may indicate a risk level or reveal unexpected information, particularly if you are unaware of your family’s health history. In all cases, a doctor can provide guidance — whether you are at risk of a condition or simply looking to plan your long-term health more effectively.
For appointments, inquiries, or consultations, contact the Prestige Wellness Center at Bangkok Hospital Pattaya through any available contact channel.
References:
Mayo Clinic Staff. (2020). Genetic testing. Mayo Clinic. https://www.mayoclinic.org/tests-procedures/genetic-testing/about/pac-20384827
Cleveland Clinic. (2022). DNA, Genes & Chromosomes. Cleveland Clinic. https://my.clevelandclinic.org/health/body/23064-dna-genes–chromosomes
Centers for Disease Control and Prevention. (2022). Genetic Testing. CDC. https://www.cdc.gov/genomics/gtesting/genetic_testing.htm
