Function Health and Colin O'Brady

Colin O'Brady
“Having been a professional athlete for nearly two decades, optimizing my health has long been a priority. I’ve used Function Health to prepare for world records projects in the most extreme environments on the planet, including Antarctica. Function is truly game changing. They have made it easier and more affordable than ever to stay on top of and in front of any imbalances. Now I can really know what’s under the hood, and use their easy-to-understand dashboard as a bedrock for optimizing my health, longevity and high performance.”
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FIND OUT
What’s holding
you back?
The first ever-membership that includes the cost of 100+ lab tests—comprehensive across heart, thyroid, hormones, metabolic, toxins, nutrients, autoimmunity and more. Robust results turn into actionable insights from top doctors. Just $499 per year.*
Included with Membership
The year-round gift of owning their health.
Function is the one place for advanced lab testing, results tracking, insights, and explanations, allowing you to concentrate on living. No hidden fees. No insurance involved.
Annual Set of 100+ Lab Tests
Each membership year begins with the Annual set of the most comprehensive  100+ lab tests.  Then 3-6 months later, members receive Follow-Up set of 60+ lab tests to see how their body has changed.
Follow Up Set of 60+ Tests
All-in-one testing across heart, hormones, thyroid, cancer signals, nutrients, heavy metals, metabolic health, liver, kidney, pancreas and even more. 5x more testing than most physicals.
Menu to Purchase Additional Re-Tests Anytime
Focus on specific areas or test everything again. Easy to book. Fully transparent prices.
Exclusive Invites for Friends and Family
Easy to read. Easy to understand. Evidenced-backed insights based on your unique results, developed with the world’s top doctors.
Access to Grail’s Galleri cancer testing.
Detect 50+ cancers. As early as stage 1. Just two vials of blood. Includes ovarian, breast, testicular, cervical, melanoma, colon, and pancreatic.
How Function works
Health made simple: Function makes testing easy, fast and powerful.

1

5 minutes to book
Book a time slot at one of 2000+ labs across the US.

2

15 minute lab visits.
Includes the cost of two rounds of testing each year.

3

Make changes based on easy-to-read results and personalized expert insights. Watch progress over time and take control of your health.
What is Function?
Results over time
Stay up-to-date with your ever-changing health. Results are tracked over time with clear explanations for each test in a secure dashboard. Prioritize changes, and watch your progress with each new test. It’s the first step in owning your health outside the doctor’s office.*
Real testimonials from actual members
“Love love love having this service available! It is exactly what I’ve been looking for for many years as traditional western medicine is loathe to do any preventative testing besides the basic annual Chem/CBC. I love being able to take charge and be proactive in my health. Keep up the good work! You have my membership for life!”
“This is a GREAT resource, I am a professor at UCSF in the medical school and do research on chronic disease prevention... yet I can’t get all of the blood biomarkers I want measured on my own body through my primary care doctor.”
“Function Health has allowed me to set a baseline from which I can monitor & take control of my health. My Function dashboard provides guidance on how to improve my results. All of my health information is one convenient & easy to comprehend location. I can even download my records, should I need to see a doctor for any reason.”
Frequently Asked Questions
Which tests are included with a Function membership?
All-in-one testing across heart, hormones, thyroid, cancer signals, nutrients, heavy metals, metabolic health, liver, kidney, pancreas and even more. 5x more testing than most physicals. List of tests here.
Why hasn’t this existed before?
Comprehensive testing has historically presented major hurdles to patients, including the need to decipher hard-to-read PDF's, google searching what results mean, adding numbers to spreadsheets to catch trends, and getting tests without knowing knowing the cost until the bill arrives. Function organizes all of this and delivers so much more—including transparent pricing and insights from world-renowned doctors based on your results.
Where is Function available?
Function is available in the continental US. Function requires our members to have a permanent residency in the US with a valid US address and active US phone number to be able to provide the full extent of our services.

Lab visits are available at 2,000+ locations across 47 states. At this time, lab visits are not possible in New York, New Jersey, Rhode Island, Hawaii and Puerto Rico.
What's tested?
All-in-one testing across heart, hormones, thyroid, cancer signals, nutrients, heavy metals, metabolic health, liver, kidney, pancreas and even more. 5x more testing than most physicals.
How can I give my gift to my loved one?
On the date of your choosing, we will email and text your recipient with your gift, and your gift message. You can also forward them the email gift confirmation you receive.
How does Function compare to my annual physical?
Function includes every lab test that is typically part of most physicals, and then goes even further with access to 100+ tests across every major area, including heart, thyroid, hormones, brain, cancers, and fertility. These tests are championed by specialists ranging from cardiologists to endocrinologists.

In addition, Function includes a clinician's note every time you are tested. If there is a result that is considered urgently critical, the reviewing clinician's will call you right away. Furthermore, your lab test results will provide personalized insights from the world's top doctors.
Where do I go for my lab visit?
You will be tested at one of over 2,000 locations across the US, within 10 miles of nearly every home in the United States. Our lab partner performs over 50 million tests per year and is trusted by the entire medical community. Lab visits are not currently available in New York, New Jersey, Rhode Island, Hawaii or Puerto Rico
“Function is the most powerful approach to health I’ve seen in my career as a doctor.”
Mark Hyman, M.D.
Co-Founder & Chief Medical Officer
“Function is the most powerful approach to health I’ve seen in my career as a doctor.”
Mark Hyman, M.D.
Co-Founder & Chief Medical Officer