Mouth Taping

Placing a small piece of tape over the lips during sleep to enforce nasal breathing. Popularized by James Nestor's bestseller "Breath" and endorsed by Andrew Huberman. Reduces snoring, improves sleep quality, and activates the parasympathetic nervous system.

Why this habit matters

Physical: Reduces snoring 50–75%, improves oxygen delivery via nitric oxide, strengthens immune function through nasal filtration, reduces dental decay.
Mental: Deeper, more restorative sleep stages; reduced morning brain fog; lower overnight cortisol and heart rate.
Productivity: Better sleep quality translates to sharper focus, better mood regulation, and higher cognitive performance the next day.