Along with the kidneys, C. sinensis is also a revered lung tonic in Traditional Chinese Medicine and is thought to increase the flow of Chi, which is associated with the air element. When there is more Chi and unhindered oxygen uptake, there is an increase in energy as a result.
Many of the mushroom's effects on the lungs are believed to stem from its ability to improve efficient oxygen utilization. C. sinensis is helpful for professional sport athletes for this reason and helps to increase athletic performance and endurance levels.
D-mannitol, also called cordycepic acid, is recognized to play a major role in alleviating conditions such as bronchitis or asthma as are its anti-inflammatory components. It is a Chinese prescribed treatment for such health issues and has been used extensively as a preventative for altitude sickness in high mountain regions.
In a study entitled "Anti-asthmatic activities in mycelial extract and culture filtrate of cordyceps sphecocephala J201" it was shown that "the mycelial extract and culture filtrate of C. sphecocephala, indicated that the extracts reduced the undesirable immune responses and/or cytokine expression exhibited in asthma."