Mindpreliminary · human dataDiscovery of the day
A sweep of randomised trials found box breathing offers short-term relief for perceived stress, anxiety and mood, but only eight trials qualified and its effects on heart rate variability and cortisol were absent or inconsistent.
- Study design
- Review
- Journal
- Appl Psychophysiol Biofeedback
- Evidence
- preliminary
What it shows: Worth a measured read: a sweep of all the studies on box breathing turned up just eight trials, in groups ranging from healthy adults to postpartum women, using different routines. The calm it delivered was short-term and the body's stress chemistry mostly did not follow.Review · Appl Psychophysiol Biofeedback
Systematic Review of Randomised Controlled Trials Evaluating Box Breathing for Stress, Autonomic, and Clinical Outcomes. Appl Psychophysiol Biofeedback 2026Read the study →