Today, only four European countries still drive on the left and they are all islands:

• The United Kingdom;
• Ireland;

Human hand preference is predictably a biological and genetic (hereditary) phenomenon, but we see that 85 percent of people are right-handed.

Researchers have identified the specific gene (D Gene) that occurs more commonly among the population which responsible for promoting right-hand pre...

There is no conclusive evidence that people preferentially use the left or right hemisphere.

Certain functions are processed more by one region of the brain than others, and this is known as lateralization. But we all use our entire brain equally.