Bicycling is one of children concussion causes. The helmet hasn't assessed the ability to protect the brain from concussion. Helmets has not assessed for protection ability. Many experts believe that concussion cannot be prevented. Shortly, concussion process occurs when brain smacked with skull and getting damaged and injured. This theory is not all right since probably concussion is more than impact but deeper. There is a space inside of the brain, only a few millimeters from skull which contain cerebral spinal fluid. The function of spinal fluid is to protect the brain so that the brain just shifted slightly. The brain illustrated as a rigid object, but in fact, the brain is a softest organ. When the brain moves back and forward, the brain was twisting, turning and contorting and the tissues are getting starched. A concussion is unlikely something at the surface but something deeper in the center.
A simulation which recorded by mouth-guard showed the red spot. The red spot described that brain tissues are 50% starched from the particular area while the blue spot is around exterior has only 10 % starched. Corpus callosum is the lobes at the center of the brain. The ex-football player had larger lobes than normal. His corpus callosum getting chronic traumatic encephalopathy which had a lot of death tissue. The point of decrease concussion is to slow down our head movement.