Elle Russ chats with Dr. Caroline Leaf - a communication pathologist and cognitive neuroscientist with a Masters and PhD in Communication Pathology and a BSc Logopaedics, specializing in cognitive and metacognitive neuropsychology. She has a new book out: Cleaning Up Your Mental Mess.  Since the early 1980s she has researched the mind-brain connection, the nature of mental health, and the formation of memory. She was one of the first in her field to study how the brain can change (neuroplasticity) with directed mind input. Dr. Leaf is also the bestselling author of Switch on Your Brain, Think Learn Succeed, Think and Eat Yourself Smart, and many more.