The “ergo” in Udoergo comes from the greek word ergon meaning ergonomics. Ergon means work and nomos means rule thus meaning work rules. It means the science and technique of creating an enjoyable work and living environment. “An enjoyable work” is created when the work condition conforms around the unique characteristics created by the human structure, function and state of mind. The principle of ergonomics is not to adjust the worker to the environment but to adjust the work environment to the worker. Ergonomics is a necessary science and technique to live happily in our aging society.