Symptoms:
Increased confusion, dilated pupils, worsening headaches, stumbling, blurred vision, vertigo (dizziness), memory loss, and occasional weakness in an arm or leg.

Causes:
Most often, concussions occur as a result of motor vehicle accidents or contact in sports. During these types of accidents, a direct blow to the head may cause a rapid acceleration and deceleration of the brain within the skull. This may cause bruising and damage to the neurological tissues within the brain. Physiologic swelling typically occurs post trauma and often leads to symptoms of drowsiness, blurred vision, and occasional memory loss due to increased pressure on the brain.

Tips:
It is of utmost importance for any persons suspected of enduring a concussion to be tested immediately by a trained medical professional. In the event an athlete is diagnosed with a concussion, he or she should never return to the field of play on the same day. Athletes also should not drive until they are cleared to return to their respective sport. Proper physical and mental rest is needed in order for the brain tissues to heal. Avoid the use of alcohol, aspirin, anti-inflammatory medications, and sleep medications after a concussion. Use Tylenol for pain relief only if necessary.