Empowers smarter training for lasting performance

By measuring key biomarkers of molecular stress and recovery, you can dial-in your training load , catch early signs of overtraining, and know how far you can push

Stress isn't the enemy. It's the signal

When you understand your body’s molecular response, you unlock a whole new level of control over your performance.

Stress isn’t just pressure or burnout — it’s every rep, sprint, lift and drill your body powers through to trigger adaptation and increase strength.

Too little stress, and you don’t improve; too much, and you hit a wall. Understanding stress at the molecular level is key to elite performance.

Stress isn’t one dimensional - good or bad, it triggers a cascade of biochemical signals, with cortisol, inflammation and the immune system shaping the story.

Understanding Your Molecular Response To Stress Means Knowing:

Stress Image

Understanding Your Molecular Response To Stress Means Knowing:

Stress Image
Tick Icon

When stress is helping you build strength, endurance, and performance

Tick Icon

When stress is tipping into overload, risking burnout, injury, or stagnation

Tick Icon

How your body responds over time, so you're building and maintaining resilience

Cortisol is your body's built-in performance tool

Impact Data Item Icon
Master Integrator

Reflects training load, sleep, and fueling, not just mental stress

Impact Data Item Icon
Follows a Circadian Rhythm

Peaks in the early morning to get you going and declines by bedtime to promote rest

Impact Data Item Icon
Drives Growth and Adaptation

Regulates energy, metabolism, inflammation, and recovery

Graph

When dialed-in, it's a game changer

Fuels Performance

Cortisol spikes are a key driver of athletic performance, mobilizing energy substrates, increasing alertness, and supporting cardiovascular output.

Signals Recovery

Healthy cortisol rhythms support recovery by regulating inflammation, promoting tissue repair, and synchronizing sleep wake cycles. Unhealthy rhythms suggest overtraining or poor load management.

Maintains Resilience

Frequent cortisol imbalances can suppress immune defenses, increasing susceptibility to illness and injury, increasing rest requirements, and compromising sustained performance, year after year.

Smarter Head Btn Icon
Am I overtraining?
Smarter Head Btn Icon
Can I push harder?
Smarter Head Btn Icon
Is my immune system strong?
Graph
Graph

Discover Where You Stand

01

How is my body adapting to my training load?

02

Does my molecular profile show signs of over-training?

03

Do I have room to push harder?

04

Are there signs of molecular damage to my immune system?

Monitor Your Progress

01

Is my body continuing to adapt effectively to the demands of my training?

02

Did changes in my training regimen improve my molecular profile?

03

Am I physically and mentally prepared to take my program to the next level?

Get Access to SapereX Endurance

Logo

Testing in the US

You Bring The Drive — We Bring The Science To Help You Perform Better, Stay In The Game Longer, And Thrive In And Beyond The Sport