Glossary
Coherent Breathing
Coherent breathing is a slow, even breathing technique of roughly five to six breaths per minute, with the inhale and exhale about equal in length and no holds. This slow pace is often used to encourage a calmer physiological state and is a common foundation for relaxation and breath-focused practices.
Coherent breathing, also called resonant or resonance-frequency breathing, is defined mainly by its pace: around five to six breaths a minute, which is markedly slower than the usual twelve to twenty at rest. The inhale and exhale are roughly matched in length and the flow stays smooth, with no deliberate holds. In practice that often works out to breathing in for about five to six seconds and out for the same.
The reason this specific pace comes up so often is that slow, even breathing around this rate is associated with a shift toward the body's rest state and with changes in heart rate variability, which is why it appears frequently in discussions of relaxation and recovery. As with all such practices, the effect is real but modest and varies between people, so it is best understood as gently supporting the body's own regulation rather than guaranteeing calm.
Coherent breathing is a close cousin of box breathing; both slow the breath deliberately, but coherent breathing keeps a continuous, hold-free rhythm, which many people find easier to sustain for longer stretches. It is a common backbone for guided relaxation because it is simple and undemanding. SYLO can build this kind of paced breathing into a session generated from your reflection, rather than a fixed recording. SYLO is a wellness tool, not a medical device. For the research and its limits, see our science page.