Some Types of Stress Could Improve Brain Functioning and Reduce Risk of Mental Illness

Brain Stress Concept

Moderate levels of stress can help individuals develop resilience and reduce the risk of developing mental health disorders, according to new research.

Low to moderate levels of stress may help build resilience while reducing the risk of mental illness.

Stress is often thought of as entirely bad, and can at times feel like an anvil hanging over your head. However, that looming deadline stressing you out at work may actually be beneficial for your brain. This is according to new research from the Youth Development Institute at the University of Georgia.

According to the study, low to moderate levels of stress can help individuals develop resilience and reduce the risk of developing mental health disorders, like depression and antisocial behaviors. Low to moderate stress can also help people cope with future stressful encounters. The study was recently published in the journal Psychiatry Research.

“If you’re in an environment where you have some level of stress, you may develop coping mechanisms that will allow you to become a more efficient and effective worker and organize yourself in a way that will help you perform,” said Assaf Oshri, lead author of the study and an associate professor in the College of Family and Consumer Sciences.

The stress that comes from studying for an exam, preparing for a big meeting at work, or pulling longer hours to close the deal can all potentially lead to personal growth. Being rejected by a publisher, for example, may lead a writer to rethink their style. And being fired could prompt someone to reconsider their strengths and whether they should stay in their field or branch out to something new.

Stress from preparing for a major meeting at work, studying for an exam, or working longer hours to finish a sale can all potentially lead to personal growth. For instance, being rejected by a publisher could lead a writer to rethink their style. In addition, being fired could make someone reevaluate their skills and decide whether to pursue new opportunities or stick with what they know best.

Unfortunately, the line between the right amount of stress and too much stress is a thin one.

“It’s like when you keep doing something hard and get a little callous on your skin,” continued Oshri, who also directs the UGA Youth Development Institute. “You trigger your skin to adapt to this pressure you are applying to it. But if you do too much, you’re going to cut your skin.”

Good stress can act as a vaccine against the effect of future adversity

The scientists relied on data from the Human Connectome Project, a national project funded by the National Institutes of Health that aims to provide insight into how the human brain functions. For the present study, the team analyzed the project’s data from more than 1,200 young adults who reported their perceived stress levels using a questionnaire commonly used in research to measure how uncontrollable and stressful people find their lives.

Participants answered questions about how frequently they experienced certain thoughts or feelings, such as “in the last month, how often have you been upset because of something that happened unexpectedly?” and “in the last month, how often have you found that you could not cope with all the things that you had to do?”

Their neurocognitive abilities were then evaluated using tests that measured attention and ability to suppress automatic responses to visual stimuli; cognitive flexibility, or ability to switch between tasks; picture sequence memory, which involves remembering an increasingly long series of objects; working memory and processing speed.

The researchers compared those results with the participants’ answers from multiple measures of anxious feelings, attention problems, and aggression, among other behavioral and emotional problems.

According to the analysis, low to moderate levels of stress were psychologically beneficial, potentially acting as a kind of inoculation against developing mental health symptoms.

“Most of us have some adverse experiences that actually make us stronger,” Oshri said. “There are specific experiences that can help you evolve or develop skills that will prepare you for the future.”

However, the ability to tolerate stress and adversity varies greatly according to the individual.

Things like age, genetic predispositions, and having a supportive community to fall back on in times of need all play a part in how well individuals handle challenges. While a little stress can be good for cognition, Oshri warns that continued levels of high stress can be incredibly damaging, both physically and mentally.

“At a certain point, stress becomes toxic,” he said. “Chronic stress, like the stress that comes from living in abject poverty or being abused, can have very bad health and psychological consequences. It affects everything from your immune system, to emotional regulation, to brain functioning. Not all stress is good stress.”

Reference: “Is perceived stress linked to enhanced cognitive functioning and reduced risk for psychopathology? Testing the hormesis hypothesis” by Assaf Oshri,
Zehua Cui, Cory Carvalho and Sihong Liu, 20 May 2022, Psychiatry Research.
DOI: 10.1016/j.psychres.2022.114644

The study was co-authored by Zehua Cui and Cory Carvalho, of the University of Georgia’s Department of Human Development and Family Science, and Sihong Liu, of Stanford University.

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