Aging causes changes in all the parts of the body including the brain. The size, vasculature and cognition of brain change with age. It causes changes at all levels, from molecules to morphology. Brain shrinks and incidence of stroke, dementia and white matter lesions increase with advancing age. There are changes in the levels of hormones and neurotransmitters. Regular exercise, low alcohol intake and a healthy diet are a few protective measures that reduce cardiovascular risk as well as aid the aging brain. The changes in the brain are not uniform in all regions. Another factor that affects the aging of brain and its cognitive performance is hormonal influence. Aging is one of the most important risk factors for neurodegenerative diseases such as Alzheimer's and Parkinson's disease. This book provides significant information of this discipline to help develop a good understanding of brain aging. The topics covered herein deal with the therapeutic interventions in brain aging. This book will prove to be immensely beneficial to students and researchers in this field.