Dr. Leaf is a communication pathologist and cognitive neuroscientist specializing in cognitive and metacognitive neuropsychology. Since the early 1980s, she has researched the mind-brain connection, the nature of mental health, and memory formation. She was one of the first in her field to study how the brain can change (neuroplasticity) with directed mind input. During her years in clinical practice, she worked with many people who struggled with Traumatic Brain Injury (TBI), Chronic Traumatic Encephalopathy (CTE), learning disabilities (ADD, ADHD), autism, dementia and mental ill-health issues like anxiety and depression.
Dr. Leaf is also the bestselling author of Switch on Your Brain, Think Learn Succeed, Think and Eat Yourself Smart, and many more. She teaches at academic, medical and neuroscience conferences, churches, and various audiences worldwide. She is also part of the mental health initiative in Washington, DC. Dr. Leaf is currently conducting clinical trials using the 5-step program she developed while in private practice to demonstrate further the effectiveness of mind-directed techniques to help relieve mental ill-health problems such as anxiety, depression and intrusive thoughts.