Most new computers come with a standard keyboard and mouse. For many people, these may work fine for a while. But remember - the selection of a good ergonomic mouse can make a significant difference in mousing comfort during everyday computing.
Many ergonomic triggers leading to musculoskeletal disorders are present while mousing: excessive force from hitting the mouse buttons, repetition with long...
A mouse should be positioned as close as possible to the keyboard to avoid reaching or sitting with an outstretched arm, and at the same height to avoide awkward arm positions.