The brain is a complex organ which regulates every action in the human body, including memory, motor skills, respiration, thought, emotion, hunger, touch, vision and temperature. If the brain gets injured, it can have a wide range of consequences, such as changes in sensation, memory and even personality. There are various types of brain disorders, including mental health disorders, brain injuries, neurodegenerative disorders like Parkinson's and Alzheimer's disease, brain tumors and many more. The prognosis for patients suffering from brain disorders is determined by the type and degree of the disorder. Some of the disorders are simple to treat with therapy and medication. However, conditions such as neurodegenerative disorders and some traumatic brain injuries do not have a treatment. Phytochemicals are bioactive compounds which are found in plants, fruits, herbs and vegetables. They are not essential for sustaining cell viability, but have a significant role in providing protection to the neural cells from oxidative stress related with aging, inflammation, and chronic and acute brain diseases related with aging. This book is compiled in such a manner, that it will provide in-depth knowledge about phytochemicals and their effect on the neurological disorders. It presents researches and studies performed by experts across the globe. Those in search of information to further their knowledge will be greatly assisted by this book.