The Most Cost-Effective Resident Service to Extend Healthy Life Expectancy: Success Models and KPI Design for 'Chewing Enlightenment Campaigns' for Local Governments

In Japanese society, where the declining birthrate and aging population are progressing rapidly, the most serious problem faced by local governments is the “snowballing national health insurance premiums and nursing care costs.”

To stop this, each local government is desperately rolling out health promotion campaigns such as “Let’s walk 8,000 steps a day” and “Let’s popularize low-salt recipes.” However, these measures force residents to “make an effort (exercise)” or “endure (bland flavors),” and they hardly reach the indifferent demographic that needs the most support. As a result, the current situation is that they are inviting an “expansion of health disparities” where only healthy people become healthier.

Therefore, the “regional implementation of chewing habits,” which slows down the speed of daily meals, is attracting attention as a “third public health approach” that prevents lifestyle-related diseases (metabolic syndrome) most reliably and at a low cost without burdening residents, and even lowers the risk of dementia.

Why is “Chewing” the Optimal Solution for Local Government Campaigns?

The greatest merit of chewing lies purely in the fact that it is “an action that is guaranteed to happen 3 times a day, anytime, for anyone, and for free.” Neither a special gym nor special ingredients are required.

• The Front Line of Preventing Metabolic Syndrome (DIT and Blood Sugar Control): Just by having residents take “twice as long (and as many chews) per bite” to eat, calorie consumption through Diet-Induced Thermogenesis (DIT) increases, and the excessive secretion of insulin is suppressed (the obesity model related to E06). This is a powerful breakwater that physically creates a “constitution that is hard to gain weight (the baseline of the entire community).”
• Prevention of Eating Alone and Depressive Tendencies (The Serotonin Effect): Eating alone is becoming a problem in areas with an aging population. Chewing well (moving the jaw at a constant rhythm) causes the brainstem to secrete serotonin, bringing mental stability.

KPI Design and Implementation Models for “Chewing Habituation Campaigns” for Local Governments

There is an urgent need to break away from awareness activities that end with just “putting up posters.” For local governments to succeed in chewing campaigns, concrete “environmental design” and “KPIs (Key Performance Indicators)” to measure the effects are essential.

Phase 1: “Physical Hacking (Nudging)” of the Food Environment

Rather than relying on the willpower of individual residents, policy is used to rewrite the “default hardness (texture)” of the infrastructure they use (restaurants, supermarkets, schools, nursing care facilities) (implementation related to E07).

• Creation and Subsidy of “Chewy Certified Stores”: Encourage local restaurants to offer “menus that cannot be swallowed in one bite (requiring a high number of recommended chews)” and grant them certification marks and incentives.
• Introduction of “Slow School Lunches” in Nursery and Elementary Schools: As an intervention from a young age, instead of just aligning nutrients, intentionally incorporate “ingredients with a hardness that cannot be completely eaten unless chewed (such as root vegetables)” into school lunches and secure time for eating.

Phase 2: Data-Driven KPI Design

Instead of vague evaluations like “I feel like the citizens have gotten healthier,” chase clear numerical values.

1. Environmental Index (Infrastructure Diffusion Rate): The percentage (diffusion rate) of restaurants and school lunch facilities in the entire city that offer menus clearing the “Chewiness (Texture) Guidelines.”
2. Behavioral Index (Actual Chewing Status of Residents): Distribute wearable devices (such as repurposed chew meters or smartwatches) to a segment of monitors, or utilize apps to collect data on the increase in the citizens’ “average meal time per meal” and “number of jaw movements” before and after the campaign implementation (effectiveness measurement related to E14).
3. Outcome Index (Ultimate Goal): As long-term indices, the community’s “decrease in average BMI” and “improvement rate of HbA1c (blood sugar levels)” in specific health checkup results, the “improvement of the dental consultation rate (number of remaining teeth),” and ultimately, the “suppression of the growth rate of medical and nursing care costs per capita.”

A paradigm shift from the traditional public health of “making people walk and endure” to “reactivating the natural device that is the jaw muscles.” Local governments taking the initiative to prepare the “chewing environment” for residents is precisely the cleverest defense measure for medical resources in the next generation.