How Head Injuries Can Alter Personality, Cause Depression and Suicidal Thoughts

For months or even years after a brain injury, the risk of depression and suicide remains higher.
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Laura Kimbro held her son moments after he took his life and felt certain that he didn’t really want to kill himself.

Nearly two years prior, Seth Kimbro had looked at his parents with fear in his eyes and asked, “Am I going to die?” He’d been rushed to the emergency room by a friend after his face smacked a large mailbox partially surrounded by tall weeds on a ride in a utility task vehicle.

The 22-year-old had a gaping wound in his shattered chin, several breaks in his jaw, and busted teeth. Both the CT and MRI scans showed no physical brain damage. The family was relieved. They put brain concerns aside and focused on the long road of physical recovery.

“When they told us he had no brain damage, I remember feeling such a sense of relief because it was his head that took the impact. I was like, ‘Thank you, God.’ I got on my knees, praying and thanking him,” Mrs. Kimbro told The Epoch Times.

By all accounts, Seth was excelling in healing. He had lost weight with his jaw wired shut but was regaining muscle and—seemingly—confidence. He’d met a woman, proposed, and moved in with her. He had a new job that he was excited about and was looking forward to his sister’s wedding.

However, there were subtle signs that Seth wasn’t emotionally and mentally feeling like himself. He told his mom, who accepted the first available appointment for him to see a therapist which was not for 24 days. Six days before the appointment, Seth took his life.

He left no note but a trail of clues leading his family to realize he had been struggling with post concussion syndrome (PCS) depression, a condition that can affect up to 30 percent of concussion patients.
Seth Kimbro, photo taken on January 27, 2021, prior to the accident. (Photo by Laura Kimbro)
Seth Kimbro, photo taken on January 27, 2021, prior to the accident. Photo by Laura Kimbro

PCS causes brain fog, headaches, nausea, memory problems, and blurry vision. The condition can exist with PCS depression, which causes personality changes that make it difficult for those concussed to reconcile the old self with the post-injury self. They may also struggle with suicidal thoughts.

About 25 percent of traumatic brain injury patients experience suicidal ideation—a rate that is nearly seven times higher than the general population—and the risk appears to remain elevated for a number of years. It should be noted, however, that according to the World Health Organization, two-thirds of people with suicidal ideation never attempt suicide.

PCS is difficult to identify through screening, and patients with symptoms often feel ashamed to share them, though experts say there are ways to heal from the injury and accompanying depression.

“It’s a very convoluted injury because of how invisible it is and how it can be misinterpreted,” neuropsychologist Alina Fong told The Epoch Times.

A Different Type of Brain Injury

Concussions are a mild form of traumatic brain injury (TBI) that can heal in minutes or take months to heal. They can be caused by impact to the head—as in a sports or car accident—or by violent shaking. Consciousness may not be lost but the state of consciousness can change. That is, the person may be disoriented or confused.

Feelings of depression are most severe in the first two weeks after a concussion but can linger for months or even years.

Severe traumatic brain injuries affect cognitive function, behavior, or physical abilities with short- or long-term brain damage and have long been associated with an increased risk of suicide. Anecdotal evidence that even mild TBIs could raise the risk of depression and suicide motivated researchers to examine the data.

Suicides after concussions are rare, with less than 1 percent of affected people dying this way. However, those diagnosed with a mild TBI or concussion were twice as likely to kill themselves as people without brain injuries, according to a systematic review and meta-analysis published in JAMA Neurology that reviewed 700,000 cases.
The investigation outlined several mechanisms at play in a concussion that may lead to suicide:
  • Abnormal connectivity among neurons in areas of the brain responsible for cognitive and emotional processing
  • Neuropsychological deficits associated with clinical depression
  • Disease that slowly damages the brain by allowing phosphorylated tau—a protein that builds up in the brain and is a biomarker for Alzheimer’s disease—to accumulate around blood vessels and in the brain folds
These mechanisms are more functional in nature and less likely to be seen on imaging tests, as was Seth’s case.

Fong recognized this early in her career working at Veterans Affairs Health Care with war veterans who often had normal MRIs. The uptick in cases was attributed to improved survival rates in blasts, likely due to better military equipment and medical care. However, veterans were often left with a range of symptoms that were misdiagnosed as psychiatric problems with little regard for brain trauma, she said.

“Some medical gaslighting goes on with a lot of brain injured patients, and it can happen across genders and across ages.
A lack of functional scans in the average clinic can elude diagnosis, said Fong. Additionally, many patients score within normal limits on cognitive brain tests because comprehension and focus can be harnessed for shorter periods but not sustained long term.

Clinical Tools May Identify Risk

It’s possible that PCS depression is challenging to identify because its symptoms overlap with the concussion itself. However, research indicates patient screening and testing—not regularly done—can help identify those most at risk.
In a study published in Brain Research, 35 college athletes were given neuropsychological screenings—assessments of brain function including memory, attention, language, and problem-solving skills—and electroencephalography (EEG). Researchers noted differences among those who suffered from both concussion and depression.

Participants with both conditions scored significantly worse than those who had only concussion or depression on the screenings. Compared with healthy controls, those with both concussion and depression history had more altered alpha band synchronization—meaning the EEG illustrated how brain regions were not communicating well with each other.

The authors noted that EEG and neuropsychological screenings could serve as objective measures for those struggling with depression after having a concussion.

In a study published in JAMA Network Open comparing data of children ages 5 to 18 with concussions to those with orthopedic injuries, researchers found a greater risk of mental health issues, psychiatric hospitalization, and self-harm among the concussion group.
“Our findings suggest that during concussion follow-up visits, physicians should assess patients’ mental health. It has been found that collaborative care and mental health treatment improve outcomes in pediatric concussion with chronic symptoms,” the authors wrote.

Healing is Possible

Anessa Arehart’s recovery illustrates an important facet of PCS depression—healing can be tedious, frustrating, and isolating—but also liberating.

Two bad car accidents within 53 days gave her a debilitating headache. Arehart told The Epoch Times she wasn’t able to write her name after the second accident. Brain scans revealed widespread damage, significant bruising, and swelling. However, it was a year before a neurologist mentioned PCS to her.

“I really don’t remember a lot of the last decade,” Arehart said. “I didn’t feel attached to my own body. I got really down because I’m a very outgoing, happy person. The depression was horrible. I was really to the point where I didn’t think I could go on.”

While therapy was useful for her to learn how to forgive both drivers, her brain began to heal during long walks in nature. The outdoor excursions became so vital that she moved into a tiny home built on 50 acres, allowing her to spend as much time as she wanted in the woods.

“I would sit in the woods and feel very nurtured or comforted or calmed down by nature,” Arehart said. “I’d always find something that was a metaphor for rebirth or healing or a promise of something better to come. There were things I couldn’t come up with on my own that were just gentle reminders and gave me glimmers of hope. And it was the only time my headache wasn’t excruciating.”

She has relearned painting—her vocation—and has written two books about her experience to encourage others. One is a coffee table book of her nature photos, which she took daily to help remember her excursions and begin healing her brain.

Fong said she has learned that intensive therapy can accelerate progress—helping patients return to normal activities more quickly—and often be more convenient.

Patients at Fong’s clinic complete therapy in a two-week window, spending entire days on-site. The program involves exercises to strengthen cognition, brain-muscle coordination, vision, balance, and sensory integration. It also incorporates a psychological component to support patients dealing with depression and suicidal ideation.

Whatever path to healing a patient chooses, Fong said it’s important to have a professional—ideally one knowledgeable about PCS—who’s available to talk to when suicidal thoughts arise.

She offered several tips for managing depression and suicidal thoughts:
  • Talk to someone every day.
  • Create a daily schedule—this is helpful for the brain—and stick to it.
  • Make a safety plan for what you’ll do when experiencing suicidal thoughts, including who to call if the thoughts persist.
  • Exercise and stay active.
  • Identify a place where you feel safe and retreat there as needed to shut out the world.
Fong also recommended avoiding the following:
  • Being alone for long periods of time
  • Alcohol, as it contributes to lethargy, impulsivity, and depression
  • Drugs, including cannabis if possible
  • Activities you know make you feel worse, such as unhelpful reminiscing
  • Ruminating on suicidal thoughts, which can strengthen them
Trying to suppress suicidal thoughts altogether can backfire, Fong added.
“That thought is a normal response. But it doesn’t have to mean anything,” she said. “Accept the thought, acknowledge it, and let it go. Then distract yourself, go watch a movie, find a new hobby.”

Signs of PCS

How do you know if you’re struggling with PCS? Any type of blow or severe shaking of the head can cause post concussion syndrome. Symptoms generally fall into four categories:
Physical
  • Trouble with balance
  • Sensitivity to light or noise
  • Headaches
  • Vision changes, such as fuzzy or blurry
  • Fatigue and drowsiness
  • Nausea or vomiting at the onset of injury
Cognitive
  • Trouble concentrating
  • Slower processing
  • Trouble remembering new information
  • Brain fog or unclear thinking
Emotional
  • Feeling sad, irritable, nervous, anxious, or panicked
  • Difficulty regulating emotions or feeling more emotional
  • Not finding enjoyment in things you used to enjoy
Sleep
  • Sleeping much more than usual
  • Sleeping much less than usual
  • Trouble falling asleep
  • Trouble getting back to sleep
  • Racing thoughts that prevent sleep

‘Giving Light to Darkness’

It became clear when Mrs. Kimbro reviewed her son’s phone after his death that his struggles were more intense than anyone had realized—and his symptoms aligned with PCS. He had kept notes about why he hated himself and his loss of hope. It didn’t reconcile with his public persona of keeping faith.

Even when her daughter woke the Kimbros after a concerning phone call from Seth—one that indicated he was extremely sad and struggling that night—Mrs. Kimbro didn’t believe he would hurt himself. She could barely process the news when an officer called while they were en route to her son’s home to inform them of his death.

“Suicide did not enter my mind. If you knew Seth, he had so much life in him, so nothing made sense,” she said.

The enormous grief of arriving too late is a feeling the family does not want others to experience.

Mrs. Kimbro has since devoted herself to learning about the condition and posting information about PCS and suicidal thoughts in medical clinics. She wrote a book about their experience called “Giving Light to Darkness,” and the family continues working to keep Seth’s memory alive.

“There was a moment where I got a little angry with God after we lost Seth,” Mrs. Kimbro said. “But then I realized he actually helped Seth. God gave him back to us for 22 months. He got to make future plans. He met a really wonderful girl, and he was able to ask her to marry him. Some people don’t get that part of life, and Seth got to have that part.”

If you or someone you know is struggling with suicidal thoughts, please reach out for help. You are not alone, and support is available. For immediate assistance, contact a mental health professional or call a crisis line.

In the United States, dial or text 988 to reach the Suicide & Crisis Lifeline, available 24/7. 
Amy Denney
Amy Denney
Author
Amy Denney is a health reporter for The Epoch Times. Amy has a master’s degree in public affairs reporting from the University of Illinois Springfield and has won several awards for investigative and health reporting. She covers the microbiome, new treatments, and integrative wellness.