43 patients participated in a study for erectile dysfunction. The participants underwent a series of hyperbaric oxygen sessions for a total of 9 months. The collected data was very positive and the results of this study confirmed that hyperbaric oxygen therapy helped to improve erectile function. In addition, they measured both total and free serum testosterone levels and the data did not show any effect on testosterone levels. This would leave us to believe that the benefits of hyperbaric oxygen are not related to hormonal fluctuations occurring from this procedure, but instead other physiological benefits from the hyperbaric administration <view study>