Raising VO2 max
For cardiovascular fitness and endurance
Most of the experts we follow recommend it.
Train consistently to improve VO2 max, supporting cardiovascular health, energy production, and longevity.
Who is behind it
Voices including a performance scientist with a psychology PhD and a Stanford-educated anesthesiologist.
How strong the research is
Mostly expert experience so far, with published research still catching up.
In their words
“VO2 max is a measure of your cardiovascular health... it reflects the ability of the cardio respiratory system to deliver oxygen to the muscle.”
a performance scientist with a psychology PhD
VO2 max reflects cardiovascular health and the ability to deliver oxygen to muscles, which is essential for energy production and preventing fatigue during physical activity.
Consistently training for a higher VO2 max is important because VO2 max diminishes with age and training helps maintain the ability to do activities that bring joy.
Talk it through
Entrain shows what the experts teach, so you can make better decisions with your own clinician. It does not diagnose or prescribe. If something is worrying you, start there.
How this reading was made
Every line here comes from a doctor, scientist or coach speaking publicly, and links to the moment they said it. Entrain listens for where independent experts arrive at the same place on their own, and shows where they part ways. Mostly expert experience so far, with published research still catching up.
None of the statements here come with a declared commercial interest. Last refreshed 23 September 2026.
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