breathing high-concentration oxygen raises venous oxygen levels in the blood
The increase in venous PvO2 observed after exposure to O2 alone was not significantly different from that obtained after O2-O3 exposure, indicating that the oxygenation effect is primarily attributable to the high oxygen concentration rather than ozone.
What this means for you
When venous oxygen levels rise, your blood is carrying more oxygen back from your tissues — a sign your body is absorbing and circulating oxygen more efficiently. For most people, better oxygen availability supports energy, mental clarity, and the kind of cellular recovery that happens between activity and rest.
The published research
Eur J Appl Physiol (1999) 80: 549±554 Ó Springer-Verlag 1999
· 1999
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