Left-handedness
preference for using one's left hand rather than the right / From Wikipedia, the free encyclopedia
Left-handedness is a preference to use the left hand more than the right hand for daily activities such as writing or using tools. Most people can use either hand for many things. However, people very often have a definite preference for using the left or right hand for things such as: using a pen, using a knife, using scissors, brushing teeth, blowing their nose, and so on.[1] People who do not have a preference are called ambidextrous.
People do not just have preferences with things they do with their hands: they may, for example, be left-footed if they prefer to kick a ball with the left foot, or push harder with the left foot on a bicycle pedal.
Far more people are right handed than left handed. It is difficult to measure exactly how many, because each person has a different mixture of preferences, but about 5ā10% are left-handed.