Sour foods can be a simple but effective sensory grounding tool when anxiety becomes overwhelming. The intense acidity activates both the taste system and the trigeminal nerve, which responds to sharp or strong sensations in the mouth. This dual stimulation sends a fast, attention-grabbing signal to the brain, creating a brief sensory reset. For many people, this sudden shift interrupts spiralling thoughts, redirects attention back to the body, and gives the nervous system a