Reasons to have good posture while typing

Sit up straight

• Helps avoid pressure on the spine.
• Helps prevent muscle fatigue; slouching.

Keep feet on the floor

• They help balance your body for keyboarding.
• Crossing your ankles or knees puts a strain on your spine.

Proper finger positions

• Will cause you to make less typing mistakes.
• Keeping fingers on row will help with stretching your arms.

Elbows in

• Prevents your fingers from coming off home row 
• Prevents striking other keys 

Proper wrist positions

• Helps avoid fatigue in your hands.

Eyes on computer screen

• Lose time from speed or type a wrong line, skip words, repeat a line, etc.

Distance from keyboard

• Sitting too close:  
• You won't be able to reach the keys below
• Sitting too far: 
• You won’t be able to reach the keys above

proper positioning of keyboard

• Too low: your arms and shoulders will become tired.
• You’ll also have trouble reaching keys.