The brain is the most complex and delicate organ in the body. Our feelings, emotions, personality, and behaviors are all housed in our miraculous brain. If slight damage or trauma has occurred, it can greatly impact the rest of your life perhaps even causing or affecting a predetermined condition. Dr. Daniel Amen, psychiatrist and author of many books on the brain, recently commented on the link between mild brain trauma and behavioral, emotional, or cognitive issues.
The key is to take precautions to protect your brain. Avoid dangerous sports or activities that can cause brain damage. If you have experienced trauma, be sure to mention this to your psychologist even if you only believe it to be a minor incident. The more information you provide, the better care you will receive.
For more information, I recommend reading more about Dr. Amen and his work. http://www.brainplace.com/