Medical science is constantly evolving. Concepts regarding health and biological function that were once thought to be true are no longer supported. One such misconception from the past is the left versus right brain theory. While the idea is still engrained in popular culture, psychologists, neuroscientists and other authorities on the brain have all but discredited the notion of a strictly dichotomous brain. Instead, current thinking is that while particular activity is at times higher in certain critical regions, both hemispheres are typically more or less equal in their activity. Below is a brief look into this school of thought on left and right brain dominance. Continue reading to learn more about brain exercises.Graphic created by MasterPieces, a provider of jigsaw puzzle glue.