Experts doubt accuracy of biological age test kits

"Biological age" test kits are gaining popularity, but experts caution they may not be worth the cost due to limited accuracy and standardization. The tests claim to measure cellular aging, offering a snapshot of health. These tests, which can cost around $500, use blood or saliva samples to assess "wear and tear" at a molecular level, often using epigenetic clocks. However, results can vary significantly between providers, and the tests are not diagnostic tools. While research supports the use of these tests in population studies, individual results may be unreliable. Experts recommend focusing on established healthy habits like diet, exercise, and sleep instead of relying on these tests.