Frequently asked Questions

Eternal is for any person invested in their health and their ability to stay active for the long run. While we do serve pro (even legendary) athletes, you don’t have to call yourself an athlete, be competitive, fast, or have spent your life participating in a given sport. If you’re curious about your body’s health and fitness – and how to radically improve it – Eternal can give you the insights and guidance you’ve been missing.

Most healthcare aims for acceptable, rather than optimal, health outcomes for the average person. And testing ranges are calibrated for the average, often sedentary, population. The team at Eternal understands the unique needs of active people who want to stay active their whole lives. We take concerns seriously that traditional practitioners might dismiss, and we know that your active life is non-negotiable. Eternal combines advanced diagnostics, thoughtful interpretation for active bodies, and a clear action plan – not just a list of results. Our mission is simple: bring pro-level care to anyone who’s ready to invest in themselves.

Your Eternal MD is a complement to your traditional PCP. We will guide and advise you on short and long-term strategic health decisions that support your priorities. We’re focused on preventative, long-term strategy, while your PCP remains your go-to for urgent needs, prescriptions, and routine medical care.

Foundations is ideal if you can’t make it to one of our performance centers in New York or San Francisco. It gives you a clear picture of your health and nutrition based on your blood labs, activity levels, goals, and nutrition habits.  In addition to your results and biomarker-based goals, a sports dietitian will customize a nutrition plan and supplement strategy based on your biodata.

Performance provides you with a full picture of how your body is functioning today and what your health and performance potential could be, plus a roadmap for where and how you can improve. Diagnostics include both blood labs and an in-depth physical assessment at one of our performance centers in New York or San Francisco.

Pro offers the most detailed guidance and year-long, concierge medical care. This membership ensures you’re not just optimizing now, but actively future-proofing your health. With Pro, you’ll have ongoing coaching, regular check-ins, and access to a dedicated MD in addition to extensive diagnostics.

You can sign up for a Foundations or Performance membership directly on our website. Our Pro membership is intentionally capped to ensure every member receives the highest level of personalized care. Spots are offered via a waitlist (join here), and when one opens up, you’ll be contacted directly via email and SMS.

Yes! You can join as a Foundations member in any eligible state. For Performance and Pro memberships, as long as you can make it to a performance center for your in-person assessment(s), you can be a member of Eternal.
Current eligible states include: CA, CT, MA, NY, OR, TX, VA (more coming soon)

First, you’ll download the Eternal member app (available for iPhone only). From there, you’ll complete intake forms, schedule lab work, and (if applicable) book your in-person performance assessment.

We partner with labs across the country, making it easy to find a location that’s convenient for you. For added flexibility, we also work with GetLabs to offer at-home testing for an additional fee.

We have two performance centers, one on each coast:
2399 Greenwich Street, San Francisco, CA 94123
525 W. 26th Street, New York, NY 10001

Our medical team accounts for whether or not you’ve deloaded before testing. There’s value in understanding your performance markers even without a deload, and we adjust interpretation accordingly—particularly for inflammation, sex hormones, thyroid, and muscle enzymes. We recommend scheduling bloodwork after a lighter week or a rest day to capture the clearest picture, but even mid-training data can be valuable for identifying priorities.

Assessing while rehabbing can be very beneficial to understand any strength, power, stability or mobility asymmetries. While you might want to perform at your peak, understanding the underlying mechanics that might be linked to a training injury can help us guide you. And then, at your reassessment, we will capture you at your peak! Note: to capture your VO2 max and lactate thresholds, you’ll need to be able to either run on a treadmill or ride a stationary bike.

Congratulations! We’re committed to supporting women at every stage of life. Our Foundations membership is safe and supportive during pregnancy. For our more advanced memberships (Performance and Pro), we’ve chosen to pause enrollment until postpartum so we can design a program that meets pregnancy-specific needs with the thoughtfulness it deserves. We’d be honored to welcome you into Eternal when the time is right, when we can support you with the care and specificity you deserve.

Yes! Our goal is to help new moms reconnect with their sense of self and their new goals while learning how to prioritize health and routine in the midst of a major life transition. We recommend waiting approximately 3 months postpartum before beginning lab work and assessments so your body has time to stabilize.

Physical Assessment: we suggest waiting till you’re 3 months postpartum for accurate testing. Some markers (strength, aerobic capacity) may take longer to return to baseline—but we’ll guide you every step of the way.

‍Lab Testing: dive in when you’re ready, but note that your lab results may not be reflective of your true baseline until you have stopped breastfeeding and your cycle has resumed.

Your results are delivered in the Eternal member app, which is currently available on iPhone only.

Yes. Pro members get regular coaching and ongoing support to take action on results and make targeted improvements. Performance and Foundations members receive defined priorities, and can opt in for extra support if desired.

Pro members have a dedicated MD with whom they can partner on tackling any health issues. Performance and Foundation members can opt in to MD consults as needed (additional fee).

Foundations: $499/year
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Performance: $999/year
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Pro: $6,000/year
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We also offer flexible payment options through Klarna.

We do not accept insurance, but we can provide you with an itemized receipt that can be submitted to your HSA/FSA provider for reimbursement.

Eternal is designed to be your companion as you age. Health is a journey, and Eternal is designed to help you track measurable progress across cycles, build sustainable habits, and see meaningful change – not just snapshots.

You can cancel your membership at any time and we’ll stop your autorenewal. If you’re unhappy with your experience, reach out to us - we’ll do our best to make it right.