Moderate Toxins · Brain health technique
Avoid nitrogen oxides
Evidence grade: Essential
Gases released from traffic exhaust, power plants, and gas stoves when fuel burns. The most common are nitrogen dioxide (NO₂) and nitric oxide (NO). They irritate airways, form ozone and fine particles, and have been linked to vascular and white-matter damage in the brain.
- Practice
- Moderate Toxins
- Principle
- Protection
- Tactic
- Minimize Environmental Toxins
- Evidence grade
- Essential
- Strength of evidence
- High
How to practice Avoid nitrogen oxides
Chronic exposure above 20–30 µg/m³ is associated with higher dementia risk. Ventilation and outdoor avoidance matter most for high-traffic and indoor-gas settings.
The evidence behind Avoid nitrogen oxides
Long-term exposure inflames the respiratory tract and cerebral blood vessels, promoting vascular dementia and white-matter injury. Studies linking gas-stove NO₂ exposure to childhood asthma also suggest parallel inflammatory pathways that harm adult cognition.
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