Cordyceps mushrooms have been studied for their potential to improve physical performance, including the possibility of increasing VO2 max, which is the maximum amount of oxygen an individual can utilise during intense exercise. Here are some key points regarding Cordyceps and VO2 max: Historical Use: Cordyceps have been used traditionally in Chinese medicine to enhance stamina and reduce fatigue, suggesting their potential benefits for physical performance. Mechanism: The active compounds in Cordyceps, such as cordycepin and adenosine, may help increase ATP production (the body's primary energy currency) and improve oxygen efficiency in the body, which can contribute to enhanced physical performance.