A concussion is a head injury that affects people of all ages and activity levels. A concussion can result from many everyday situations, such as a slip on an icy sidewalk or a minor vehicle collision. The signs of this injury are not always visible, and people may not recognize that they have sustained one. Learning how concussions occur and what recovery typically involves can help individuals make informed decisions about their health after a head injury.
What Are Concussions?
Concussions are a type of mild traumatic brain injury (TBI). They occur when a forceful impact to the head or body causes the brain to move rapidly within the skull. This movement can disrupt the way the brain normally functions. During this type of injury, the brain may shift, rotate, or strike the inner walls of the skull. These forces lead to chemical changes within the brain, and they can otherwise affect brain cells. Medical providers classify concussions as mild because the injury is not typically life-threatening, but this does not mean the effects on daily function are minor.
What Are the Symptoms?
Concussion symptoms differ from person to person, and they may affect physical, cognitive, and emotional well-being. Some individuals notice changes right after the injury, while others do not experience symptoms until hours or even days later. Commonly reported symptoms include:
- Trouble with memory, concentration, or thinking clearly
- Headache or a feeling of pressure in the head
- Vision that is blurred and other vision-related changes
- Dizziness or problems with balance
- Difficulty walking
- Fatigue or drowsiness
- Nausea or vomiting
Some people may also experience sensitivity to light or noise, changes in sleep patterns, or irritability. Concussions can occur alongside whiplash; this is a neck injury caused by rapid back-and-forth motion of the head. Since the two conditions produce overlapping symptoms, a medical evaluation may help clarify the source of a person’s discomfort.
What Does Recovery Involve?
Medical providers typically recommend a period of relative rest during the first 72 hours following the injury. Relative rest involves limiting activities that demand significant physical or mental effort while still allowing light, everyday tasks. After this initial period, individuals typically resume activities in gradual stages, increasing their level of activity as symptoms allow. The overall aim of recovery is to help each person return to the routines they followed before the injury. Concussions affect multiple aspects of health, so care may involve an interdisciplinary team of professionals.
Consult a Medical Professional
Certain warning signs after a head injury can indicate a more serious condition, and they generally call for emergency medical attention. These signs include a worsening headache, repeated vomiting, slurred speech, seizures, fainting, or one pupil appearing larger than the other. Medical guidelines also advise against returning to sports or other high-risk activities until a healthcare provider has given clearance, as a second head injury during recovery may lead to further complications. For symptoms that aren’t urgent but persist or interfere with daily life, a medical professional can perform an evaluation and recommend an appropriate plan of care.
