ACT 2's Panel vs Function Health and Superpower

At the result. A membership testing company tells you that your ApoB is high, that your testosterone is low for your age, that your ferritin is depleted or your HbA1c is in the prediabetic range — and then its obligation ends, because it is a diagnostics service and not a medical practice. The interpretation says "discuss with your physician." Your physician, who did not order the test and may not share the company's view of what "optimal" means, is now being asked to act on a result they did not seek.

This is the gap, and it is structural rather than a failing of either company. Diagnostics companies are regulated as laboratories and consumer services. They cannot prescribe. Many have begun adding physician access to close the gap, and how far that goes — a consult, a referral, an actual prescription with monitoring — varies and changes. But the model is measurement first and treatment elsewhere, and the person is the one who has to carry the result across.

The other structural feature is what breadth does to a healthy person. A hundred markers, each with a reference range, will produce several out-of-range results in almost everyone by arithmetic alone. Most are noise. Distinguishing the ones that matter from the ones that do not is a clinical skill, and it is the skill a diagnostics company's report can gesture at and a prescribing clinician has to exercise — because they are the one who will be prescribing, or not, on the strength of it.

The panel on the main page is narrower than a hundred markers, and deliberately so: it is the set a clinician needs to make the decisions this practice makes, plus the longevity markers we think everyone over forty-five should have. It is reviewed by a clinician who can act on it — who can prescribe the hormone therapy a low estradiol points to, the GLP-1 a metabolic panel argues for, the B12 a deficiency needs, and who can refer the result that is outside what we treat. The measuring and the acting are the same appointment.

That is the "measurement layer" the lab-testing pillar describes — measuring is the first treatment because the person measuring is also the person treating. It is the one thing a diagnostics membership, however good its panel, does not do. And it is honest to say what we do not do in return: we do not run a hundred markers twice a year for their own sake, we do not present a dashboard as the product, and a person who wants the widest possible data set with no intention of treating anything is better served by one of them.

Function Health or Superpower: if you want the broadest panel, on a schedule, with trend tracking and a well-designed report, and you have — or will find — a clinician to act on it. If you are healthy, curious and data-driven, they are excellent.

ACT 2: if you have a symptom or a goal — energy, weight, hormones, a marker you already know is off — and want the measurement and the treatment decision made by the same clinician in the same plan. The panel is the start of care, not the product.

Both: some people do. The membership panel provides the breadth; we act on the results that need acting on, and we will review a Function or Superpower report as readily as our own draw — the main page's FAQ on using results you already have covers it.