Why breathing matters
Breath pattern directly regulates the autonomic nervous system. Slow nasal breathing activates the parasympathetic 'rest and digest' state.
The 4-7-8 technique
Popularized by Dr. Andrew Weil. Four cycles reliably slow heart rate by 5–10 bpm.
Buteyko breathing
Trains light, slow nasal breathing. Linked to reduced snoring and milder sleep apnea symptoms.
Box breathing
4 seconds in, 4 hold, 4 out, 4 hold. Used by Navy SEALs and clinically validated for anxiety reduction.
Practical protocol
5 minutes of slow nasal breathing in bed, every night for 2 weeks — measurable improvement for most adults.