Handedness
better performance or individual preference for use of a hand / From Wikipedia, the free encyclopedia
Handedness is the preference for using either the left or the right side of the body for certain things. People are described as left-handed or right-handed when they prefer to write with their left or their right hand. They may prefer the use of certain hands for certain tasks.
Most people are right-handed. Many prefer to use their right eye, right foot and right ear if forced to make a choice between the two). The reasons for this are not fully understood.
Ambidexterity is when a person has approximately equal skill with both hands and/or both sides of the body. True ambidexterity is very rare. In some sports work is done to even up the influence of the non-dominant side. Soccer is a good example.