A recent review of brain-imaging studies has revealed that chewing gum can positively influence brain activity related to attention, stress, and alertness. Conducted by researchers from the University of Szczecin in Poland, the comprehensive analysis sheds light on how this simple habit may enhance focus and well-being, while also addressing its limitations and potential drawbacks.
Chewing gum is not a new phenomenon; its history spans thousands of years and dates back at least 8,000 years to ancient Scandinavia, where individuals used birchbark pitch for various purposes. Other cultures, including the Greeks and the Maya civilization, also engaged in chewing tree resins, attracted by both the pleasure and the calming effects it provided. The transition of chewing gum from an obscure practice to a commercial product largely occurred in the late 19th and early 20th centuries, with William Wrigley Jr. leading the charge through innovative marketing. His brands, such as Juicy Fruit and Spearmint, were promoted as tools for stress relief and enhanced concentration.
The latest review, published in 2025, meticulously analyzed over thirty years of brain-imaging studies employing various techniques, including MRI and EEG, to explore how chewing gum affects the brain. The findings indicated that chewing gum activates regions associated with movement, attention, and stress regulation. As Crystal Haskell-Ramsay, a professor of biological psychology at Northumbria University, noted, chewing gum can be particularly helpful in maintaining concentration during monotonous tasks.
The research also highlighted that participants who chewed gum during mildly stressful activities, like public speaking or mathematical tasks, often reported lower anxiety levels compared to those who did not chew gum. This suggests that the act of chewing may provide a calming effect under specific conditions.
Neurological Insights and Limitations
Despite these promising findings, the research emphasizes certain limitations. The benefits of improved focus and stress reduction from chewing gum tend to be short-lived. Participants did not show significant improvements in memory recall when chewing gum, and any attention-boosting effects disappeared shortly after chewing ceased. Experts suggest that the act of chewing may satisfy a natural inclination to fidget, contributing to perceived benefits.
The researchers acknowledged that while chewing gum can modulate brain function beyond basic oral motor control, the neural changes associated with chewing are not directly linked to the positive outcomes observed in studies. They stress the need for further research to understand the long-term effects, differentiate the roles of flavor and stress, and explore potential therapeutic applications.
Health Considerations
Alongside these insights, it is essential to consider the potential downsides of chewing gum. Dental professionals caution that certain ingredients in gum, including acids and sweeteners, can harm teeth. Excessive chewing may lead to adverse effects even with sugar-free options.
This complex interplay of benefits and drawbacks highlights the need for a balanced perspective on chewing gum. While it may provide some cognitive advantages, particularly in specific situations, users should remain mindful of its limitations and potential health risks. As research continues, a clearer understanding of how chewing gum interacts with brain function may emerge.
