Can sneaky oral bacteria mess with Parkinson's disease?

New research reveals that Streptococcus mutans, a sneaky little oral bacterium, might be stirring up trouble for folks with Parkinson's disease. This bacteria hangs out in the gut and produces an enzyme that can sneak into the brain, causing inflammation and messing with dopamine levels. In short, it could be a key player in the motor symptoms of Parkinson's.