Chewing gum may temporarily improve focus and ease mild stress, a 2025 study found.

Chewing gum may boost short-term focus and reduce mild stress by activating brain regions linked to attention and emotional regulation, according to a 2025 review of brain-imaging studies. The research, from the University of Szczecin, found chewing alters brainwave patterns associated with alertness and relaxed concentration, particularly during repetitive or low-stress tasks. While benefits were inconsistent in high-stress situations and did not improve memory or sustained attention, the habit may offer temporary mental clarity. Historical use of chewing resins dates back 8,000 years, and modern gum was popularized in the 20th century for perceived mental benefits. Scientists say more research is needed on long-term effects, flavor, and therapeutic potential, while dental experts warn excessive chewing or certain ingredients may harm teeth.