BDNF, or Brain-Derived Neurotrophic Factor, 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 neurons and synapses, which are essential for learning, memory, and overall brain health. Research has shown that BDNF levels can be influenced by various factors, including physical exercise, diet, and mental health. Higher levels of BDNF are associated with improved cognitive function and a reduced risk of neurodegenerative diseases, making it an important focus in studies related to brain health and wellness.