Emerging research indicates that PQQ may have neuroprotective effects as well, which is particularly relevant in an era where neurodegenerative diseases are increasingly prevalent. By supporting neuronal health and protecting against damage caused by oxidative stress, PQQ could potentially lower the risk of conditions such as Alzheimer's and Parkinson's disease. Furthermore, some studies have suggested that PQQ may improve cognitive performance, memory, and executive function, making it of interest to those seeking to support brain health.