A New Test That Uses Saliva Samples to Predict a Person's Age

Assessment might prove useful in solving crimes and improving care, researchers say A new test that uses a saliva sample to predict a person's age within a five-year range could prove useful in solving crimes and improving patient care, University of California, Los Angeles geneticists say. Their test focuses on a process called methylation, a chemical modification of one of the four building blocks that make up DNA.''

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