Genetic tests read DNA you were born with, which doesn't change. Biological age tests estimate how fast your body is aging now, but they're still research tools, and different tests can disagree. For most people, the most useful genetic test is a targeted one chosen because of family history.
The tests, in plain English
Your genes are like the blueprint of a house. A biological age test is more like an inspection of how the house is holding up. Both are useful, but neither tells you exactly when the roof will leak.
Inherited-risk gene panel
Checks specific genes linked to cancer or heart risk. A positive result can change when and how often you get screened. Talking to a genetic counselor before and after is normal.
For: People with a strong family historyWhole-genome or broad DNA test
Reads much more of your DNA, sometimes all of it. It can turn up useful findings, and also variants nobody knows how to read yet.
For: People who want the big picture and are fine with uncertain resultsBiological age test
Estimates your pace of aging from a blood or saliva sample. Interesting to track over time, but it is a research measure, not a diagnosis.
For: People who will retest the same way later
