For decades, most people judged aging by a single number: the candles on a birthday cake. However, a growing number of health researchers, wellness clinics, and older adults are paying closer attention to something called biological age instead. Biological age tracking attempts to measure how quickly the body is actually aging based on biomarkers tied to inflammation, metabolism, cellular health, sleep, activity, and resilience. Here is why biological age is being looked at as a key health indicator.
