be sure to cite your source and answer this question in at least 100 words. Gas therapy, such as the use of medical gases like hyperbaric oxygen, nitric oxide, xenon, and hydrogen sulfide, has shown potential in treating brain diseases, including stroke, traumatic brain injury, and neurodegenerative disorders (Shin et al., 2021). However, these therapies come with side effects and challenges. For example, hyperbaric oxygen therapy can cause oxygen toxicity, leading to seizures, especially with prolonged exposure or high pressure. Nitric oxide may contribute to oxidative stress or inflammation if not carefully dosed. Moreover, although neuroprotective, xenon is expensive and requires special delivery systems. Challenges also include a limited understanding of these gases' optimal dosing, timing, and long-term effects. To overcome these issues, researchers suggest individualized dosing protocols, combination therapies, and advanced delivery systems to target gas effects more precisely. Continued clinical trials and technological innovation are crucial for improving the safety and efficacy of gas therapies. References Shin, S. S., Hwang, M., Diaz-Arrastia, R., & Kilbaugh, T. J. (2021). Inhalational Gases for Neuroprotection in Traumatic Brain Injury. Journal of neurotrauma, 38(19), 2634-2651. https://doi.org/10.1089/neu.2021.0053 (https://doi.org/10.1089/neu.2021.0053)