Why Chewing Gum Might Help You Focus — New Review Shows Brief Brain Changes Linked to Alertness and Stress Reduction
A 2025 neuroimaging review from the University of Szczecin finds that chewing gum briefly engages brain systems tied to movement, attention and stress regulation, producing short-lived boosts in alertness and mild reductions in everyday tension.
- Short-lived brain changes: Chewing reliably activates sensorimotor networks and, under some conditions, higher-order attention and emotional regulation areas.
- Practical effect: Expect modest, temporary boosts in alertness and mild stress relief — not lasting memory gains or anxiety treatment.
- Evidence base: Review synthesized fMRI, fNIRS, EEG and MRI studies across more than three decades (PubMed).
Key information
Study type: A 2025 neuroimaging review published in Brain Sciences; the authors analyzed fMRI, fNIRS and EEG work spanning more than 30 years (PubMed).
Main finding: Chewing gum activates sensorimotor networks and, in some conditions, recruits higher-order attention and emotional-regulation regions.
Practical takeaway: Chewing may give brief boosts to alertness and mild stress relief but does not produce lasting memory gains or strong anxiety reduction in high-stress situations (coverage: Fox News; AOL).
What the review examined
Researchers linked to the University of Szczecin pooled human neuroimaging work that used MRI, functional MRI, near‑infrared spectroscopy (fNIRS) and EEG. The review, titled “The Neural Correlates of Chewing Gum – A Neuroimaging Review of Its Effects on Brain Activity,” pulled together studies spanning more than three decades to track how chewing changes brain activity and blood flow (PubMed).
The authors searched for consistent patterns across experiments, including lab tests where volunteers chewed flavored or unflavored gum while performing arithmetic, memory tasks, or coping with mildly stressful challenges. They also reviewed studies of chewing during high-stress settings, such as preoperative moments. Imaging signals—blood flow and electrical activity—were compared with reported feelings of alertness or calm.
Which brain regions light up while you chew
The review found that chewing reliably activates widespread sensorimotor circuits: primary motor and somatosensory cortices, the supplementary motor area, the insula, the cerebellum and the thalamus. These areas are expected for rhythmic, repetitive mastication (PubMed).
Importantly, several studies also showed activation beyond pure motor control. Under certain conditions—especially when gum was flavored or during mild stress—parts of the prefrontal cortex and cingulate cortex became more active. These higher‑order areas support attention, monitoring and emotional control, which helps explain why people often report feeling more focused or less tense while chewing (PubMed; coverage: Fox News).
EEG and the “relaxed concentration” state
EEG studies in the review showed short-lived shifts in brain‑wave power while chewing, commonly reporting transient increases in both alpha and beta bands. Alpha increases are linked with a calm but wakeful state; beta rises tie to alert engagement. Together, these shifts match a reported state of relaxed concentration—awake and ready, without jitteriness (PubMed; AOL).
Those EEG changes, plus small prefrontal blood-flow increases seen with fNIRS, align with why someone might feel a short-lived sharpening after popping in gum. The review, however, stresses these effects fade soon after chewing stops.
Chewing, stress regulation and real-world limits
Several lab studies found that people who chewed gum during mildly stressful tasks—quick math problems or short public‑speaking simulations—often reported lower anxiety than controls. Neuroimaging supports a mild modulation of stress-related circuits, particularly when gum was flavored or the task stress was low-to-moderate (PubMed; reporting: Fox News).
“Chewing can help with everyday, low-level stress, but it is not a strong treatment for severe anxiety.”
In high-stress medical contexts (for example, preoperative moments), chewing did not reliably cut anxiety. During impossible or deeply frustrating tasks, gum provided little or no benefit. The practical message: useful for mild, routine stress, not a replacement for clinical care.
What this means for cognition and memory
If you expect chewing gum to boost long-term memory or grades, the evidence is weak. Across studies testing recall of word lists or stories, chewers did not consistently outperform non-chewers. Neural activation or transient blood-flow changes are not yet linked to durable improvements in learning or complex task performance (PubMed).
Bottom line: modest attention and alertness gains are short-lived and do not translate into clear, lasting cognitive improvements.
Why these effects may occur
The review suggests chewing engages basic motor networks and, under certain conditions, higher-order control systems. Sensory input and flavor likely boost prefrontal engagement; rhythmic chewing may shift arousal slightly. When EEG shows simultaneous alpha and beta shifts, that pattern fits the subjective feeling of being calm yet alert—explaining quick stress reduction and short-term focus.
Limits, unanswered questions and future research
Authors highlighted gaps: most effects are transient, long-term impacts of habitual gum chewing are unknown, and the roles of flavor, sweetness, task type and stress intensity need clearer separation. The review calls for more rigorous trials to test whether chewing could be a low-cost tool for mild stress management or attention support (PubMed).
Implications for Paso Robles, California
- Everyday productivity: For small-business owners, vineyard managers and workers in Paso Robles, chewing gum may be a cheap, quick way to sharpen short bursts of attention during inventory checks, machinery monitoring or paperwork. Effects are modest and temporary.
- Stress management for front-line workers: First responders, retail staff and service workers facing many small stresses might find gum useful between calls or shifts. Not a substitute for clinical care.
- Schools and youth: Where gum is banned in classrooms, this research can inform a measured discussion about controlled use for older students during testing or study; policies should weigh cleanliness and safety.
- Tourism and hospitality: Paso Robles’ tasting rooms and wineries could allow gum for back‑of‑house staff to help stay alert during long shifts while maintaining front‑of‑house etiquette.
- Health and safety caveats: Choking risk for young children, interactions with dental work, and limits during severe anxiety mean gum isn’t appropriate everywhere.
Practical next steps for locals
- Try sugar-free gum for short bursts of focus.
- Use gum as a brief alertness aid rather than a long-term fix.
- Keep workplace safety, hygiene and etiquette in mind.
- Seek medical advice for serious anxiety or cognitive concerns.
Sources and further reading
For Paso Robles readers seeking small, low-cost ways to manage daily stress and stay sharp, the science suggests chewing gum can be part of a practical toolkit — useful for short stretches, sensible in routine settings, and not a replacement for medical care when stress is severe.
