Biological age

Everyone ages at a different rate. Scientists estimate that genetics account for only 25% of this variation, with lifestyle and environmental factors providing the greater influence. Unlike chronological age, which tells you the number of years you've been alive, biological age measures the age your body is expected to perform or function, providing insights into your overall health. Furthermore, biological age is calculated based on your epigenetics—chemical modifications attached to your DNA that determine how your genes are expressed—which are dynamic and modifiable. By monitoring your biological age over time, you can determine how diet and other lifestyle changes impact your rate of aging.