What is the Reveri App?

The cyclic physiological sigh is a breathing technique that involves taking two deep inhales through the nose, one immediately following the other, and then a long exhale through the mouth until the lungs are empty. This practice is designed to quickly restore balance between the sympathetic and parasympathetic nervous systems, helping to reduce stress and increase calmness 1.

Engaging in cyclic sighing for just five minutes a day has been shown to improve mood, reduce stress, and even enhance sleep quality. The technique works by reinflating the alveoli in the lungs, which may collapse during stress, thereby enhancing oxygen intake and carbon dioxide expulsion. This physiological response translates into benefits that last beyond the practice itself, contributing to reduced stress levels throughout the day 2 3.

If you're interested in incorporating this practice into your routine, consider setting aside five minutes daily to repeat the cyclic sighing, focusing on maintaining deep, rhythmic breaths 3.