Box Breathing4–4–4–4 Navy SEAL technique for calm focus
Box breathing is a simple 4-4-4-4 breathing pattern used to steady attention, reduce stress, and support calm focus. Use the guided trainer below or explore related techniques like coherence breathing.
Guided Box Breathing
Visual + audio‑free guidance. Press Start and follow the prompts. Each cycle is 16 seconds (4 × 4s). Tip: keep the tongue on the palate and breathe quietly.
Box Breathing
Inhale (nose)
Step: Inhale (nose)
4s left in this phase
Session
- Cycles completed
- 0 / 12
- Current phase
- Inhale (nose)
- Phase time
- 4s
- Cycle length
- 16s
Tip: If 4‑second holds feel tight today, reduce to 2–3s or skip the final hold.
References
- Zaccaro, A. et al. (2022). Effects of voluntary slow breathing on heart rate and HRV: A systematic review & meta‑analysis. Neuroscience & Biobehavioral Reviews. https://doi.org/10.1016/j.neubiorev.2022.104881
- Lehrer, P. et al. (2020). Heart rate variability and slow‑paced breathing: When coherence meets resonance. Neuroscience & Biobehavioral Reviews. https://doi.org/10.1016/j.neubiorev.2020.02.020
- Balban, M. et al. (2023). Brief structured respiration practices enhance mood and reduce respiratory rate. Cell Reports Medicine. PMC9873947
- Pascoe, M.C. et al. (2023). The Effect of Slow‑Paced Breathing on Cardiovascular and Emotion Regulation: A Meta‑analysis. Mindfulness. https://doi.org/10.1007/s12671‑023‑02294‑2
- Laborde, S. et al. (2018). How Breath‑Control Can Change Your Life: A Systematic Review. Frontiers in Human Neuroscience. Front. Hum. Neurosci. 12:353
- Conrad, A. et al. (2019). Training of paced breathing at 0.1 Hz improves CO₂ homeostasis and perceived calmness. PLOS ONE. https://doi.org/10.1371/journal.pone.0218550
- Jadhav, S. & Deshpande, V. (2021). Effect of Box Breathing Technique on Lung Function Test. International Journal of Innovative Research in Technology. ResearchGate