Unlike a broken bone or clogged artery, a brain that goes awry due to disease or injury—or even an errant molecule—causes weird and unpredictable changes in personality. Hear some of the bizarre tales of tiny particles that alter behavior from neurologist Sara Manning Peskin, author of A Molecule Away From Madness.

https://saramanningpeskin.com/ 

Plus... how parasites hijack animal brains, sometimes turning a host into a zombie in their quest to reproduce.