The left mouse is closer to the center of your keyboard.People who are right-handed tend to do almost everything with the right hand mousing with the left hand provides an opportunity to more evenly distribute some of that workload between both hands.
Here are three strong arguments for left-hand mousing, particularly if you are a right-handed person. This is the traditional “default”, because we thought that we needed dexterity to operate a mouse. When you walk through an office, you will find most mice located on the right hand side of the keyboards.
Are you still mousing with your right hand? If so, you must read further.
