A 2025Β Journal of Circadian HealthΒ study proved nighttime saliva pH drops to 5.3 (vs 7.1 daytime), creating a 7-hour acid attack! The culprit?Β Melatonin-induced dry mouth.

Survival Guide:
- UseΒ Xylitol/Chitosan night patchesΒ (e.g.,Β SmartpH) to maintain pH 6.5+ while sleeping.
- Brush withΒ titanium dioxide nanoparticles toothpasteΒ 30 mins before bed β reflects 99% acid erosion.
- Set smartwatch alerts forΒ 2 AM water sipsΒ if you work night shifts.
Future Alert: MITβs developing LED dental implants that emit alkaline light pulses neutralizing acid!