Teeth grinding during perimenopause isn't a bad habit or a dental problem—it's hormonal. As estrogen declines, jaw muscles become hypersensitive, stress hormones spike, and sleep fragments, creating the perfect conditions for nighttime bruxism. This article explains the exact mechanism behind perimenopausal teeth grinding, covers the sleep apnea connection most dentists miss, and gives you a practical, evidence-based protocol covering magnesium, sleep, stress regulation, and