A brain hemisphere is one of the two parts of the human brain. The brain is known to be split into the left and the right 'cerebral hemisphere'. You probably already knew this, but didn't really know what it is exactly that a brain hemisphere does. Well, first of all the left part of your brain is basically in controlling of dealing with the things you see and think, processing information and organizing all the things you think about on a daily basis. It also helps you interpret things at a societal level. The right brain hemisphere, however, is in control of everything that you do in the present - essentially, it allows you to react to things and do things as soon as you think about it. It allows you to be you. The right half of the brain is also in control of the left half of the body, whilst the left brain hemisphere is also in control of the right half of the body. As mentioned, the right brain hemisphere deals with everything that you experience in the p...