Neural adaptation is a process where the nervous system becomes less responsive to constant stimuli over time. For example, when you first enter a room with a strong smell, you notice it immediately, but after a while, you may hardly notice it at all. This occurs because the neurons in your sensory pathways reduce their firing rate in response to the unchanging stimulus. This phenomenon helps the brain focus on new and important information rather than being overwhelmed by constant sensory input. Neural adaptation is essential for efficient functioning, allowing organisms to respond more effectively to changes in their environment.