noli.

Register

Peter Attia, M.D.@peterattiamdInstagram

The VO₂ max you need to stay sexually active | Sally Greenwald, M.D. This clip is from episode # 371 of The

… more

what it claims

Maintaining a high level of VO₂ max is essential for preserving the ability and satisfaction of remaining sexually active over time.

holds up

The idea that better cardiovascular fitness promotes sexual health is based on solid physiological foundations.

noli's read

The idea that better cardiovascular fitness promotes sexual health is based on solid physiological foundations. Observational studies and systematic reviews (such as those published in the Journal of Sexual Medicine) show a positive correlation between physical activity, good aerobic endurance, and improved sexual function in both sexes, primarily through better blood circulation and stress reduction. Research indicates that VO₂ max is a robust marker of overall vascular health, and optimal vascular function is crucial for arousal and physiological sexual response. However, it is important to note that while the link between fitness and sexual function is well-documented, the precise claim of a 'threshold' of VO₂ max required for sexual activity remains a clinical interpretation rather than a standardized value established by strict scientific consensus. Peter Attia's approach here is consistent with his 'Medicine 3.0' philosophy, which prioritizes prevention through physical fitness to improve long-term quality of life. This is a perspective that deserves to be integrated into a holistic vision of well-being, without reducing the complexity of desire to a simple performance metric.

the sources

  1. 1Mandsager K, Harb S, Cremer P, Phelan D, Nissen SE, Jaber W 2018

Claimed by Peter Attia, M.D. Noli grades the claim, never the person.

Decoded by Noli · July 18, 2026 · the original post

What the graded evidence says

Evidence
B

Linked to, not proven to cause.

Effect
all-cause mortality by cardiorespiratory fitness (treadmill METs) — elite vs low fitness adjusted HR 0.20 (95% CI 0.16-0.24); mortality inversely proportional to fitness with no upper limit of benefit; n=122,007
Measured on
adults referred for exercise treadmill testing (single large health system)

What’s uncertain

The fitness-mortality link is observational and drawn from patients referred for treadmill testing, so it shows strong association, not proof of cause. Dramatic comparisons (e.g. 'more dangerous than smoking') are rhetorical, not precise.

Peter Attia, M.D. in the Register72 claims graded · solidity 93/100See their record →

More from Peter Attia, M.D.

Noli has read similar claims

Other advice in the Register that leans on the same research.

Noli, a firefly holding its lantern, at rest

Seen something like this? Send it to Noli.

Paste any health post from TikTok, Instagram, YouTube or X — or the advice itself, if someone just told you. About ten seconds, no account needed.