healthspan membership

Not just a blood lab and AI, a full healthspan guiding assessment. Know your trajectory. Change the outcome.

The most predictive testing you can get

Most checkups let you know if you’re healthy today, but they neglect the most important factors for optimal aging. Our signature performance assessment predicts your future healthspan by measuring key longevity markers across cardio respiratory fitness, muscle mass, and strength. And it pairs that with expert guidance on how to set your best possible trajectory.

the ultimate diagnostic

Whole-body strategy

$150 / MO
Primary care
  • Dedicated primary care team
  • Comprehensive annual exam including blood panel, DEXA scan, physical examination, and full report
  • Chronic disease monitoring and management
Performance assessment
  • Mobility & stability: Evaluate mobility, stability, range of motion, and joint function to identify movement limitations.
  • Strength & power: Measure peak lower body and upper body output using state-of-the-art testing technology including force plates
  • Aerobic efficiency & capacity: Understand your aerobic efficiency (lactate thresholds) and peak aerobic capacity (VO2 max), then get personalized training data using structured endurance metrics.
  • DEXA scan (included with your Primary Care): Get lab-grade body composition, lean mass, and bone density measurements.
Performance assessment report review
  • Extended consultation time: Deeply unpack your results and their implications with a coach.
  • Goal alignment: Connect your performance data to your short- and long-term goals to establish your priorities.
  • Coach insight: Get personalized input from someone who considers the whole picture.
  • Action plan: Define next steps, phases, or habits to focus on now.
Nutrition + supplement guidance
  • Nutrition strategy: Understand your caloric and macronutrient needs based on your health and fitness goals, and your activity and training intensity.
  • Fueling Tips: review sample meals and snacks alongside fueling strategies that align with your goals and bloodwork results.
  • Supplement review: Get clear supplement guidance informed by your blood labs, history, lifestyle and goals.
Proactive primary care included

Eternal upgrades your doctor from a reactive problem-solver to the person orchestrating your health, training, nutrition, and long-term performance.

Our Locations

In real life. In San Francisco and New York City.

Inside the performance assessment

2.5 hours. A lifetime of insight.

01

Mobility & Stability

After a dynamic warmup we’ll use functional movement and balance tests to measure your range and quality of motion as well as your core stability and muscle control.

02

Strength & Power

Next, we measure your ability to produce force and how quickly you can apply it. We use force plates and targeted exercises to identify imbalances and guide your training.

03

Aerobic Function

To identify your aerobic and anaerobic thresholds, you’ll do a Lactate Ramp test. You’ll move through stages on a treadmill or bike, with a quick finger prick after each.

04

Aerobic Capacity

Finally you’ll roll right into your VO2 max test, which measures your aerobic capacity (VO₂ max) or how efficiently your body uses oxygen during intense exercise.

01

Mobility & Stability

After a dynamic warmup we’ll use functional movement and balance tests to measure your range and quality of motion as well as your core stability and muscle control.

02

Strength & Power

Next, we measure your ability to produce force and how quickly you can apply it. We use force plates and targeted exercises to identify imbalances and guide your training.

03

Aerobic Function

To identify your aerobic and anaerobic thresholds, you’ll do a Lactate Ramp test. You’ll move through stages on a treadmill or bike, with a quick finger prick after each.

04

Aerobic Capacity

Finally you’ll roll right into your VO2 max test, which measures your aerobic capacity (VO₂ max) or how efficiently your body uses oxygen during intense exercise.

Nutrition & Supplement Guidance

Nutrition Plans

Calorie and macro targets – plus example meal plans – based on your labs, daily training load, and goals.

Supplement Guidance

Custom supplement protocols for optimal health, performance, recovery, and longevity – informed by your labs and lifestyle.

Advanced diagnostics

The picture of your health and fitness emerges through deep dives into each area and a holistic look at how they’re working together.

Health
70+ biomarkers tested
Health

We will track the health of your cardiovascular system, metabolism, hormones, and immune function - plus key micronutrients essential to performance. Results will inform nutrition and lifestyle strategies.

Adrenal
Heart
Hormones
Inflammation
systemic health
Aerobic
12 biomarkers tested
Aerobic

VO2Max testing will show us how efficiently your cardiorespiratory system captures, transports, and uses oxygen. And lactate threshold tests will inform your training regimen as we optimize your endurance capacity and aerobic fitness over time.

Aerobic capacity
aerobic function
lactate threshold
vo2 max
Body
44 biomarkers tested
Body

A DEXA Scan will reveal your body composition, with insights into your muscle mass, fat distribution, symmetry, and bone density. Then your personalized protocols will address training and age-related changes to hormones, metabolism, and skeletal strength.

body composition
bone density
Strength & Power
7+ biomarkers tested
Strength & Power

Sport-specific absolute strength challenges and dynamic power tests will reveal your strength, explosiveness, and endurance as well as potential risk factors for injury.

lower body
upper body
Mobility  & Stability
25+ biomarkers tested
Mobility  & Stability

Functional movement and balance tests will assess your range and quality of motion, core stability, and muscle control while resisting external forces. A sport-specific lens will inform your tests and protocols, which aim to increase longevity and decrease pain and injury risk.

Cervical
lower body
trunk
upper body

Health

100+ biomarkers tested
Health

Our most extensive lab panel will track the health of your cardiovascular system, metabolism, hormones, and immune function - plus key micronutrients essential to performance. Results will inform nutrition and lifestyle strategies.

Adrenal
Heart
Hormones
Inflammation
systemic health

Aerobic

12 biomarkers tested
Aerobic

VO2Max testing will show us how efficiently your cardiorespiratory system captures, transports, and uses oxygen. And lactate threshold tests will inform your training regimen as we optimize your endurance capacity and aerobic fitness over time.

Aerobic capacity
aerobic function
lactate threshold
vo2 max

Body

44 biomarkers tested
Body

A DEXA Scan will reveal your body composition, with insights into your muscle mass, fat distribution, symmetry, and bone density. Then your personalized protocols will address training and age-related changes to hormones, metabolism, and skeletal strength.

body composition
bone density

Strength & Power

7+ biomarkers tested
Strength & Power

Sport-specific absolute strength challenges and dynamic power tests will reveal your strength, explosiveness, and endurance as well as potential risk factors for injury.

lower body
upper body

Mobility  & Stability

25+ biomarkers tested
Mobility & Stability

Functional movement and balance tests will assess your range and quality of motion, core stability, and muscle control while resisting external forces. A sport-specific lens will inform your tests and protocols, which aim to increase longevity and decrease pain and injury risk.

Cervical
lower body
trunk
upper body
"Eternal combines details of human performance and clinical medicine for a holistic view of people who are active and want to stay that way for decades to come.”
Dr. Stacy Sims, PhD
Eternal Advisor / Female Physiologist and Nutrition Scientist
"What truly sets Eternal apart is its integrated approach. I’m proud to be part of this mission, and I can’t imagine navigating my own health journey without this kind of support.”
Dr. Rick Celebrini, PhD
Eternal Advisor / VP Player Health and Performance, Golden State Warriors
"What I learned about myself with Eternal has been more useful than any testing I had as a professional athlete. Now, as an Eternal advisor, I delight in being able to use my coaching and racing experience to help others get on the right track for their goals.”
Lauren Fleshman
Eternal Advisor / Coach, Author, and Former Pro Track and Field Athlete
"Across my entire medical career I’ve worked with professional and collegiate athletes  who have access to the highest level of attention and testing. I’m excited to be a part of Eternal, where anyone who cares about their health and performance can get access to this level of care.”
Dr. Kevin Sprouse, DO
Eternal Advisor / Sports Medicine / Performance Consultant for EF Pro Cycling
Member Spotlight

Optimizing for long-term performance and healthy aging

Catherine
48
Runner
Goal

Catherine came to Eternal wanting to “do what I actually need to do to optimize the second half of my life.” She hoped to improve strength, lean mass, and bone density to support long-term performance, resilience, and healthy aging.

Approach
Coach
Clinician

She partnered with Eternal Performance Coach Maillard and Primary Care Physician Dr. Jack Penner to build a program focused on increasing strength and muscle mass while improving bone density. Through consistent training, smart recovery, and nutritional precision, Catherine rebuilt the foundation for stronger, more efficient running. “This is the fastest mile I’ve run since college - and I feel stronger than ever.”

Results

6:49

Ran 6:49 at the Fifth Avenue Mile - her fastest time since freshman year of college

11 sec

11 seconds faster than last year and 5 seconds faster than 2023

Pain

Reports feeling stronger, more durable, and pain-free while training

Ready to take the next step after your diagnostics? Fully integrated personal training available

Your trainer coordinates with your clinician and dietitian so training matches your fueling, recovery, and goals, keeping you accountable and helping you stronger, fitter, more mobile each week.

Own your health trajectory.

Join Eternal today and take control of tomorrow.