Your brain is your body’s command centre. Its soft, sensitive tissues float in a cushioning fluid within the hard and sturdy skull. But a blow to the head or violent shaking can override these protections and lead to a mild type of brain injury known as a concussion.
More than 1 million mild traumatic brain injuries occur nationwide each year. These injuries can be caused by falls, car crashes or recreational activities like bike riding, skateboarding, skiing or even playing at the playground.
More than half of concussions occur in children—often when playing organized sports such as hockey and football.
Although concussions are considered to be a mild brain injury, they need to be taken seriously. They should not be treated as minor injuries that quickly resolve. With proper care, most people recover fully from a concussion. In some cases, a concussion can have a lasting effect on thinking, mood, attention, learning and memory.
A concussion can arise from the brain moving either rapidly back and forth or banging against the side of the skull. This sudden movement can stretch and damage brain tissue and trigger a chain of harmful changes within the brain that interfere with normal brain activities.
A concussion isn’t visible from the outside, and you can’t see it with standard imaging tools like MRI and CAT scans. Instead, healthcare providers look for signs and symptoms of abnormal brain function to make a diagnosis.
Common symptoms include:
- Memory Problems
Loss of consciousness occurs in about 1 in 10 concussions. A person with a concussion might have trouble answering basic questions or move in an awkward, clumsy way. Symptoms can present themselves immediately, or they can be delayed and appear over the next day or two.
THE PROGNOSIS WITH CONCUSSION INJURIES
For about 9 in 10 people with concussions, symptoms disappear within 7 to 10 days. Researchers have been working to learn more about those who take longer to recover. In a NIH study the majority of these kids recovered quite quickly or showed no increase in symptoms at all. On the other hand, a subgroup of kids, about 10% or 20%, showed a dramatic onset of symptoms after their injury and persistent symptoms that in some cases remained even 12 months after the injury.
If someone has symptoms of concussion, under no circumstances should they try to finish the quarter or finish the game. They need to be taken out of play right away and be seen by a health care provider.