Why do we adapt after prolonged exposure to a constant stimulus?

We adapt to prolonged exposure to a constant stimulus as a survival mechanism that helps us focus on more important changes in our environment. This process, known as sensory adaptation, reduces our sensitivity to unchanging stimuli, allowing our sensory systems to conserve energy and resources. By filtering out irrelevant information, our brains can prioritize new and potentially significant stimuli, enhancing our ability to respond to changes that may require attention or action.