Ergonomics is the discipline of designing workspaces, tools, and tasks to match human capabilities and prevent injury. In the context of workplace health, ergonomics focuses on posture, desk setup, equipment selection, and habits to prevent repetitive strain injury (RSI), back pain, neck pain, and other occupational health issues. A good ergonomic setup includes: proper chair support, monitor at eye level, keyboard and mouse at elbow height, feet flat on the floor, and movement breaks. The goal is to reduce strain on muscles and joints, prevent long-term injury, and maintain productivity.