Scientists identify links between oral health, lifestyle, and brain aging

Recent scientific research highlights significant connections between physical health habits and the rate of cognitive decline. Studies indicate that advanced gum disease, such as periodontitis, can increase the risk of dementia by more than 50 percent. Researchers have identified a biological oral-brain axis where bacteria, including Porphyromonas gingivalis, may negatively impact neurons and cognitive processes.

Additionally, research from the University of Florida suggests that brain aging can be slowed by up to eight years through specific lifestyle interventions. Using MRI imaging and machine learning to estimate brain age, scientists found that protective factors such as high-quality sleep, maintaining a healthy body weight, effective stress management, avoiding tobacco, optimism, and strong social relationships are strongly associated with a younger brain age.