While computers have revolutionised the way in which we do things, there are many health problems associated with prolonged and incorrect usage of computers like eye problems, headache, backache and fatigue.
Many of the ill-effects of computer use can be lessened or avoided altogether by utilising correct typing technique and posture, ensuring correct set up of equipment and good work habits.
Use an adjustable chair that provides firm, comfortable support. Adjust chair height so that thighs are horizontal, and feet are flat on the floor (use a footrest if necessary).