Slightly related: pro cyclists inhale small amounts of CO to measure their physiological adaptation to altitude training (and maybe dope with it too) https://es

Slightly related: pro cyclists inhale small amounts of CO to measure their physiological adaptation to altitude training (and maybe dope with it too) https://escapecollective.com/exclusive-tour-riders-are-inhaling-carbon-monoxide-in-super-altitude-recipe/ https://escapecollective.com/exclusive-tour-riders-are-inhal...