Biological age has become a buzzword in longevity circles and is "the true age that our cells, tissues, and organ systems appear to be, based on biochemistry," according to the National Institute on Aging. The latest breakthrough in longevity research suggests there may be a way to measure the age of specific organs. A recent study in Nature utilized machine learning models to analyze the age of 11 major organs for 5,676 adults. AdvertisementKnowing your "oldest organ" might also tell you more about your health trajectory — and the age-related diseases you could develop — than your biological age. The study found that individuals with accelerated heart aging, for example, have a 250% higher risk of heart failure.

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Persons: multimillionaire Bryan Johnson, he's, Bloomberg, It's, Dr, James Kirkland Organizations: Bloomberg, National Institute, Aging, Wall Street, Mayo Clinic