height so that the top of the monitor is slightly below eye level.
zAdjust the monitor angle so that there is no reflected light on the
screen.Try to maintain your arms perpendicular to your armpits.
zKeep your arms level with the back of your hands.
zKeep the angle of the elbow perpendicular.
zKeep the angle of the knees at more than 90 degree. Do not let
your feet fall up from the floor. Adjust the arm position so that it
is below the heart.