Highly sensitive people (HSP) process sensory information more deeply and intensely than average. When the sensory environment becomes overwhelming — too loud, too bright, too crowded — a grounding strategy is essential. For many HSP children and adults, chewing is one of the most effective and accessible grounding tools available, because it provides strong, reliable proprioceptive input that the nervous system can "hold on to".
Key Takeaways
- High sensitivity (HSP) affects approximately 15–20% of the population
- Sensory overload occurs when the sensory environment exceeds the nervous system's capacity to process it
- Chewing provides proprioceptive "grounding" — strong, reliable input that anchors the nervous system
- Proprioceptive input from the jaw may activate the parasympathetic (calming) nervous system
- A chew necklace is always available — critical when overload occurs unexpectedly
- Works alongside other strategies: noise-cancelling headphones, quiet spaces, movement breaks
What Is High Sensitivity?
The concept of the Highly Sensitive Person (HSP) was developed by psychologist Dr Elaine Aron in the 1990s. Research suggests that around 15–20% of the population has a nervous system that processes sensory and emotional information more deeply and thoroughly than average. This is a trait, not a disorder — it has advantages (greater empathy, creativity, depth of processing) and challenges (vulnerability to overwhelm, slower processing under pressure).
HSP children and adults often struggle in environments that others find manageable: busy classrooms, shopping centres, parties, open-plan offices, and social gatherings. The sensory input — noise, visual stimulation, social demands — can exceed the nervous system's processing capacity and lead to overload.
Sensory Overload — What It Feels Like
Sensory overload is not simply "feeling a bit stressed". It is a state in which the nervous system becomes overwhelmed by the volume or intensity of incoming sensory information. Common triggers for HSP children include:
- Busy, noisy classrooms with unpredictable sounds
- Crowded lunch halls or corridors
- Bright fluorescent lighting
- Multiple conversations happening at once
- The smell of food or cleaning products
- Physical contact (unexpected touch)
During overload, a child may withdraw, cry, become rigid, or seem "shut down". Some children experience what is called an after-school meltdown — they hold it together during the day and fall apart when they reach the safety of home.
See: sensory overload — signs and how to help and meltdown vs tantrum
Why Chewing Helps with Sensory Overload
When the sensory environment is overwhelming, the nervous system needs an anchor: a strong, reliable, predictable signal it can focus on. Proprioceptive input from the jaw — deep, rhythmic, and controlled — provides exactly this.
Unlike visual or auditory stimuli, which can become part of the overwhelm, proprioceptive input from chewing is:
- Self-generated: the person controls it entirely
- Predictable: it is always the same quality of input
- Strong: jaw muscles are powerful and generate significant proprioceptive signals
- Calming to the vagus nerve: rhythmic jaw movement may activate the parasympathetic nervous system
Many HSP adults describe chewing as a way to "come back to themselves" when they feel scattered or overwhelmed. It is a form of grounding — using the body to regulate the mind.
Chew Necklaces as a Prevention Tool
The key to using a chew necklace effectively is to use it before overload occurs, not only during. For a child who is approaching a challenging environment (entering school, attending a party, going to a noisy shop), wearing and using the chew necklace from the start helps maintain regulation rather than trying to recover from it.
This is why the "always available" aspect of a chew necklace is so valuable: it is worn around the neck and accessible the moment the need arises — no need to find a fidget toy, no need to explain, no need to leave the situation.
New to chew necklaces? Our complete guide covers everything from materials to school use.
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