Anything less could miss critical parts of your health. Typical physicals tend to focus on conventional standards—and what insurance will cover. This broader view can give you key insights to take action sooner.

Our doctors—including Function’s Chief Medical Officer Mark Hyman, M.D.—hand-picked every test based on the latest science around disease detection and long-term health impact.

Many members can complete their Annual Test in a single lab visit. But members with an active menstrual cycle will need 2 separate visits for accurate hormone results. Members in Arizona also require 2 visits because of state processing rules. We will walk you through any details that apply to you during scheduling.

Membership includes 100+ lab tests across every major organ system—selected by the world’s top doctors to monitor for thousands of diseases. And 60+ tests halfway through the year to see what’s changed. Hormones, heart, thyroid, nutrients, metals, metabolism, autoimmunity, liver, and inflammation—what others skip, we don’t. If it impacts your future, we test it.

Advanced Add-Ons like Galleri and MRI and CT scans are available for an additional cost. See the full list of tests.

Testing now can help you keep feeling your best—and may catch small signals that could turn into bigger problems down the line. For example, heart disease can build for decades. Cancer can be silent until later stages.

Most doctors wait for symptoms to show up before ordering many of these tests. Function gives you a deeper view now—so you can spot trends, catch changes early, and stay ahead.