Mechanical switches are usually loud, while scissors and rubber dome switches are quieter. The material of the keyboard and your typing style also affect noise levels. A quiet ergonomic keyboard combo can make work more peaceful.
Using a keyboard for long hours can cause or worsen Carpal Tunnel Syndrome (CTS). The angle of the keyboard is very important in reducing strain on the wrists. A study tested 20 healthy people to see how different wrist positions affect pressure in the carpal tunnel