Nerve Growth Factor (NGF) is a protein that plays a crucial role in the growth, maintenance, and survival of neurons, which are the cells responsible for transmitting signals in the nervous system. It is essential for the development of the nervous system and helps in the repair of damaged neurons. NGF is produced by various cells in the body and binds to specific receptors on neurons to promote their health and function. NGF is involved in several biological processes, including neurogenesis, the formation of new neurons, and neuroplasticity, the ability of the brain to adapt and reorganize itself. Research on NGF has implications for understanding and treating conditions such as Alzheimer's disease, Parkinson's disease, and other neurodegenerative disorders, where neuronal health is compromised.