"left brain." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/left-brain>.
left brain. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/left-brain
The cerebral hemisphere located on the left side of the corpus callosum. The left brain controls activities on the right side of the body, and in humans, usually controls speech and language functions. The thought processes of logic and calculation are generally associated with the left brain.