Extremely high priority
Anew Sourcedcopperoral health
Top ChoiceOral Health
Removes 75% of mouth bacteria your toothbrush misses.
Cost$8.99
TimeNone
EnergyEffortless
ImpactHigh
20Nice to haveEvidence: early
Nose breathing
Priority Matrix
The numbers.
Four dimensions, scored 1–6, where six is always the good end: cheapest, quickest, easiest, highest impact. Priority is Impact squared, divided by what it costs you in energy, money and time.
CostFree
Time-
EnergyModerate
ImpactModerate
How sure we are
EarlyPromising but thin, or mostly mechanistic work.
Kept separate from the priority score on purpose: confidence in the evidence never raises how worth-it something is.
What we read
- High nitric oxide production in human paranasal sinuses
Nature Medicine · 1995
Human sinuses produce large amounts of nitric oxide that is inhaled during nasal breathing and can support host defense and matching of airflow to blood flow — a mechanism paper, not a clinical outcome trial.
- The Effect of Various Breathing Exercises (Pranayama) in Patients With Bronchial Asthma of Mild to Moderate Severity
International Journal of Yoga · 2009
In 50 adults with mild-to-moderate asthma, 12 weeks of twice-daily pranayama improved symptoms, FEV1, and peak flow more than a meditation control — a small, disease-specific trial, not a test of everyday nose-breathing in healthy people.
Research from Karolinska Institutet. We cite their published work. They have no involvement with Anew.
Where this falls down
Still unknown. Almost no randomized trial has tested 'breathe through your nose all day' in healthy adults; the card rests on a plausible mechanism and disease-specific breathing trials.
Topics
Where it fits.
Keep going