The long-term effects of mild traumatic brain injury can be anything but mild.
Migraines, dizziness, depression, and cognitive impairments are just a few of the secondary effects that may accompany a mild TBI. They can last for months, and sometimes even years post-injury.
This article will help you get a better idea of why these long-term effects occur and how to manage them.
What Is a Mild Traumatic Brain Injury?
A mild traumatic brain injury (mTBI) is defined as a closed head injury resulting in a loss of consciousness and/or disorientation for shorter than 30 minutes. Concussions are the most common type of mild traumatic brain injuries.
In the past, most people assumed that mTBIs had few lasting consequences. However, many doctors are starting to take these injuries more seriously. They now recognize that even small concussions can have a long-term effect on patients.
The Long-Term Effects of Mild Traumatic Brain Injury
Knowing the lasting side effects of mTBI can help you manage your recovery better.
The following are some of the most common long-term effects of mild traumatic brain injury:
1. Persistent Headaches
Persistent headaches, especially migraines, are a very common effect of mTBI. They can linger long after the initial injury.
The four primary types of headaches you can experience after a mild traumatic brain injury are:
- Tension headaches: A tight, squeezing sensation all around your head caused by tightness in the jaw and face.
- Cervical headaches: Cervical headaches feel a lot like tension headaches but are caused by an injury to the neck.
- Migraines: Strong, throbbing headaches with nausea, and light/sound sensitivity that are thought to be caused by vascular changes in the brain.
- Neuralgic pain: A sharp, stabbing, shooting pain, often described as an “ice pick.” Caused by nerve damage and usually accompanied by numbness on the scalp.
Read more about treating headaches after brain injury »
2. Light sensitivity
After headaches, light sensitivity (photophobia) is the second most common secondary effect of mild TBI.
This sensitivity can be to all types of lighting or only to fluorescent lights. It is caused by the brain’s inability to adapt to new levels of brightness.
While this sensitivity usually fades over time, it can persist for six months to a year after injury.
There is no cure for light sensitivity; however, tinted glasses can help relieve the pain and dizziness caused by it.
Dizziness is another frequent symptom of mild traumatic brain injury.
There are different types of dizziness that may be felt after a mTBI. Some forms of dizziness will make you feel like the entire room is spinning, while others can make you feel like you are losing your balance.
Each type of dizziness is caused by something different, and therefore will require personalized treatment.
Some of the various causes of dizziness after head injury include:
- Inner ear problems
- Pinched nerve in your neck
- Low blood pressure
Treating the underlying cause of dizziness should help eliminate symptoms.
4. Sleep problems
After mTBI, you might find that you are sleepy throughout the day, but restless at night. Insomnia and drowsiness typically go together and are both common long-term effects of mild traumatic brain injury.
Some of the best ways to overcome insomnia include:
- Create healthy sleep habits. Changing your lifestyle can help you get your sleep under control. Try waking up and going to bed at the same time each day, and make sure you exercise regularly.
- Use natural sleep remedies. Herbal tea and melatonin can help relax your mind and get your sleep cycle back on track.
- Try medications. If nothing else works, your doctor can prescribe medications that will help you sleep. However, these should only be used as a last resort because some drugs cause daytime drowsiness and cognitive problems.
5. Mood swings
Extreme mood swings occur after damage to areas of the brain that regulate emotions. These brain regions help us control our:
- Emotional responses
- Awareness of our own emotions and others
- Ability to inhibit emotions
After a mild traumatic brain injury, these skills can become impaired. This most frequently leads to problems controlling anger and frustration. Therefore, the person with a mild TBI might be easily irritated and quicker to display anger than before the injury.
It’s important for friends and family to remember that the person’s anger isn’t intentional. Throughout the healing process, he or she should begin to regain control of their emotions again, but it might take some time.
6. Cognitive impairments
The long-term effects of mild traumatic brain injury can also include cognitive impairments such as problems with:
- executive function (e.g., decision making and planning)
- short-term memory skills
- attention and processing speed.
Fortunately, it is possible to recover these abilities through cognitive rehabilitation exercises. Consistently engaging your brain will encourage it to establish new neural pathways, which may make it easier for you to process new information.
7. Depression and anxiety
For reasons that neuroscientists still do not understand, mild traumatic brain injury seems to trigger feelings of depression and anxiety in some patients. In fact, a recent study found that 1 in 5 mild TBI patients will develop depression or some other mental health disorder.
Many of signs of depression, such as insomnia and concentration issues, overlap with mTBI symptoms, which can make diagnosis difficult. Some unique signs and symptoms of depression include:
- appetite loss or overeating
- loss of interest in activities once enjoyed
- feelings of hopelessness
Too often after a brain injury, patients will suffer from these feelings, but will not realize it could be their injury causing them.
Of course, depression is a complex issue that usually stems from multiple sources. But if you experienced a mild traumatic brain injury and now struggle with depression, it’s possible the two are related.
At any rate, it is worth speaking to a professional to which treatments would be appropriate.
How Understanding the Long-Term Effects of Mild Traumatic Brain Injury Can Help Your Recovery
It can initially be disheartening to learn about the effects of mild traumatic brain injury, especially knowing that some of them may last years after injury.
But this knowledge can prepare you for the challenges you will face and makes you better equipped to tackle them.
Your brain is a resilient organ and, even with severe damage, it can still rewire itself. Therefore, you should never give up hope of regaining your old abilities.