Stress and Anxiety Are Linked to Sleep Bruxism
Key takeaway
Nighttime teeth grinding is linked to stress and anxiety for many people; prevalence estimates vary by country and method (e.g., one Portuguese survey reported ~8.5% in adults).
- Sleep bruxism is rhythmic jaw-muscle activity during sleep.
- Stress and anxiety commonly track with grinding risk.
| Claim | Scientific Observation | Impact Magnitude | ||
|---|---|---|---|---|
| Prevalence example | ~8.5% in a Portuguese adult survey | Local, not universal | ||
| Anxiety/depression | Associated with higher bruxism risk | Elevated risk | ||
| Chronic stress | Recognized correlate | More grinding for some |