Inspired by Blueprint but want to measure your own results privately? What to track, why a published blood-based biological age helps, and how Delta fits.
Bryan Johnson's Blueprint made one idea very visible: measure a lot, change things on purpose, and look at the results. You do not have to copy the whole routine to borrow that idea. What you need is a way to measure your own body, over time, on your own terms.
Any routine, whether it is more sleep, more training, a different diet, or nothing new at all, raises one question. Is it changing anything? Without a measurement, you are guessing.
A good measurement for this has three qualities:
PhenoAge, published by Levine and colleagues in 2018, uses nine markers from a standard blood panel plus your age in years. The formula is public. Delta uses it to compute your Adaptive Age on your phone. Take a panel, then another a few months later, and compare.
If you want a faster read on how your body responds, the DELTA protocol places three blood draws around a planned 48-hour fast. It starts with a strict safety screen and is not for everyone. Read why we bracket a 48-hour fast with three blood draws before considering it.
Blood tests are rare. Daily data fills the gaps. Delta reads from Apple Health or Health Connect and Withings, and logs training, nutrition, sleep, body composition, and mood. So when your Adaptive Age moves, you can look at what your months looked like.
Delta does not sell supplements, and it does not tell you what to take. It is a wellness app, not a medical device. It measures and shows trends. Decisions about medication, supplements, or fasting are for you and your clinician.
A detailed longevity log is personal. Delta has no accounts and stores your history on your phone. Read why Delta has no accounts for the reasoning.
Most people already have a recent blood test. If it includes the nine markers, you can see your Adaptive Age today, for free. Get Delta.
