"Even though the brain is only about 2% of our body mass, they are fully in control of our body. For example: the brain controls all of the functions we need to survive including heart beating, speech, thought and reasoning, emotions, breathing, eating, digesting, our senses and physical movement. The brain uses 20% of both the oxygen we breathe and the blood flow in our bodies, and requires a constant flow of oxygen to survive.

As most of us know, our brain is protected by our skull so that it can withstand wear and tear, and while the brain itself doesn’t feel pain, it sends pain signals to other parts of our bodies.

The brain’s structure, however, is quite complex. Each different function occurs in different locations in our brains: brain stem, cerebrum, cerebellum and limbic system. When there is a trauma to a particular location in the brain, those systems are directly affected" (unicityhealthcare).