Table of contents Introduction  How Nanoplastics Affect the Brain Why Smaller Nanoplastics Feel More Dangerous Crossing the blood-brain barrier (BBB)  How Nanoplastics Disrupt Neuron Activity  Neuroinflammation: the brain’s own immune reaction  Possible Connection to Neurodegenerative Diseases  What Scientists Are Looking Into Next Conclusion FAQs Introduction Nanoplastics and brain health are becoming a real key topic,…