What is longevity medicine, and how is it different from your regular doctor?
Three kinds of medicine now share the word "health." Knowing which one a clinic practices tells you most of what to expect from the visit, the testing, and the bill.
The medicine you already know
Conventional medicine is built around diagnosing and treating disease. It is extraordinary at what it was designed for: if you break a bone, catch an infection, or need surgery, there is nothing better, and nothing here should talk you out of it. Its blind spot is the slow stuff. Chronic conditions build quietly for ten or twenty years before a symptom appears, and a system organized around treating what has already happened tends to meet them late.
Functional medicine
Functional medicine starts from a different question: not "what disease is this," but "why does this person feel this way." It treats the body as one connected system, spends longer on your history, tests more broadly, and leans on nutrition, lifestyle change, and targeted therapies before reaching for a prescription pad. At its best it finds root causes conventional visits are too short to look for. Worth knowing: the label is unregulated, so the rigor varies clinic to clinic more than in any other category we list.
Longevity medicine
Longevity medicine takes the preventive, personalized instincts of functional medicine and points them at one specific target: how you age. The goal is not just more years, but more good years, and the tools reflect that: broad biomarker panels, imaging, fitness and body-composition testing, genetic risk, and plans built around your specific numbers rather than population averages. A good longevity physician is trying to find your biggest risks decades early, while they are still cheap and easy to change.
How to tell them apart in the wild
Ask what happens on a first visit. A conventional practice books twenty minutes and runs a standard panel. A functional practice books an hour or more and asks about your sleep, gut, stress, and history in detail. A longevity practice usually starts with measurement: bloodwork well beyond a physical, often imaging or fitness testing, then a physician review of what it all means. Many of the best clinics blend all three, and every profile on this site tells you which blend you are looking at, in the clinic's own words.
None of this is medical advice, and none of these categories is "better." They answer different questions. The right one depends on the question you are bringing.