A blood test that measures changes in gene expression to estimate a person’s age can also help predict whether a person is more likely to develop a chronic disease
Source:
https://www.newscientist.com/article/2244453-a-blood-test-could-reveal-how-quickly-or-slowly-you-are-ageing/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home