Right-brain vs. left-brain thinking is often discussed in psychology. Everybody uses both thinking types to some degree, but nearly everyone tends to have one or the other as a primary thinking style.

Around the world, 10.6 percent of people are left-handed. Handedness is a form of so-called functional brain asymmetry: left-right differences in brain function. In left-handers, the right motor ...

The fighting hypothesis is one of the major theories on the evolution of left-handedness. Around the world, about 10.6% of people are left-handers, and the rest are right-handers. Many scientists have ...