The Breathing Lab

Breathing is the only autonomic system you can drive on purpose. Ten protocols, each with an animated pacer, the science, and the mistakes to avoid.

Diaphragmatic Breathing

4 seconds in through the nose, 6 seconds out. 5–10 minutes.

Inhale

4.0s

Science

Diaphragm descent stimulates vagal afferents and baroreceptors, increasing parasympathetic tone and heart rate variability.

Best use

Daily baseline training and post-session recovery.

Benefits

  • • Lower resting heart rate
  • • Improved HRV
  • • Reduced anxiety
  • • Better breathing economy

Common mistakes

  • • Chest and shoulders rising
  • • Forcing the belly out
  • • Breathing through the mouth