What is ergonomics? Ergonomics is designing a job to fit the worker so the work is safer and more efficient. Implementing ergonomic solutions can make employees more comfortable and increase productivity. Why is ergonomics important? Ergonomics is important because when you’re doing a job and your body is stressed by an awkward posture, extreme temperature, or repeated movement your musculoskeletal system is affected. Your body may begin to have symptoms such as fatigue, discomfort, and pain, which can be the first signs of a musculoskeletal disorder.