🧠 A neuron is a specialized cell in the nervous system that transmits information through electrical and chemical signals. It is the fundamental building block of the brain, responsible for processing and transmitting information between different parts of the body. Neurons have a unique structure with dendrites that receive signals, a cell body that integrates these signals, and an axon that transmits signals to other neurons or muscles. They play a crucial role in various cognitive processes, such as learning, memory, and decision-making, making them essential for our ability to think, perceive, and interact with the world around us.