Brain-Derived Neurotrophic Factor (BDNF) is a protein that plays a crucial role in the growth, maintenance, and survival of neurons in the brain. It supports the development of new synapses, which are essential for learning and memory. BDNF is involved in various brain functions and is linked to mental health, influencing conditions like depression and anxiety. BDNF levels can be affected by factors such as exercise, diet, and stress. Regular physical activity has been shown to increase BDNF levels, promoting brain health and cognitive function. Understanding BDNF is important for developing treatments for neurological disorders and enhancing overall brain performance.