Ryan Smith is the founder of TruDiagnostic, a commercial testing system that tests your biological age, as opposed to your chronological age. It’s can be a profoundly useful tool, because you need an objective barometer to tell you whether or not the things you’re doing to improve your health are actually having the desired impact. TruDiagnostic was founded in March 2020, right as the COVID pandemic hit, and the first commercial testing began in July that year. Since then, the company has launched more than 30 ongoing clinical trials, looking at a variety of interventions. They’re also looking at how COVID-19 affects health metrics and longevity. “We’ve built out new algorithms, new ways to read these DNA methylation markers that we measure for other functional health benefits,” Smith says. “DNA methylation is a really robust platform. But it’s also very new. We even have ways to look at how much …