A new test called CheekAge, based on a quick swab of cells in the mouth, might someday be used to predict how long a person has to live, developers report.

The test tracks what are known as epigenetics: The way in which a person's environment or lifestyle affects how their genes function throughout the life span.

https://www.upi.com/Health_News/2024/10/01/cheek-swab-test-predict-lifespan/1821727789459/