Although approximately 30% of people are left-handed, we all live in a right-handed world. Unfortunately for the left-handed population, Carpal Tunnel Syndrome can develop from the left-handed person’s tendency to overwrite (writing with their wrist in a hyper-flexed position) or underwrite (holding the wrist in a hypo-flexed position). Both of these techniques place the left-handed writer at higher risk of developing Carpal Tunnel Syndrome than their right-handed counterparts.
Left-handed people frequently develop their writing posture in either of the ways described above in order to avoid smearing as they write and/or to be able to see what they are writing as they are writing it. Right-handed people, on the other hand, don’t have this problem because writing with the right hand affords resting your hand on the pen itself, thereby automatically eradicating the problem of Repetitive Stress Injury.