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If you have ever been involved in an accident or suffered an injury affecting your head, you may have been diagnosed with a concussion. A concussion is considered to be a mild traumatic brain injury (TBI), a type of injury that is caused by a bump, blow, or jolt to the head that disrupts the normal function of the brain. In mild TBI’s, the disruption to the way that the brain works is only temporary, and after a brief period of rest and rehabilitation, should return to normal.

In the past, researchers intending to study the brain’s functioning injected dyes inside the brain, then established the connections therein post-mortem. The method was slow, time-consuming, and expensive. But the evolution of technology and science now allows scientists and doctors to study a living brain. They can decipher the flow of information inside the brain as it is being processed. The study of brain activity is called brain mapping.

Anxiety and depression are two of the most commonly diagnosed types of mental health disorder, and it’s estimated that more than 264 million people worldwide live with depression. They can be experienced individually, but they often occur at the same time. They also have many symptoms in common.