For quick relief on the spot, try the 5‑minute “cyclic sigh”: two inhalations followed by a prolonged exhalation

In a one‑month controlled trial where participants performed each of three breathing exercises for 5 minutes daily, all three proved more effective than an equal amount of mindfulness meditation at lifting mood and lowering respiratory rate. The “cyclic sigh” — which emphasizes lengthening the exhale — performed best. The method is simple: inhale once through the nose, then take a brief second inhale to fully fill the lungs, and finally exhale slowly through the mouth. This particular study relied on self‑reported data and involved a relatively small group of volunteers, yet it required zero expense.

No cost at all. Just 5 minutes a day.

This home‑based, randomized controlled trial compared three distinct 5‑minute daily breathing routines — cyclic sighing (focused on extended exhalation), box breathing (equal durations of inhale, hold, and exhale), and cyclic hyperventilation with pauses — against an equivalent mindfulness meditation regimen over a month. Using a mixed‑effects model on pooled data, each breathing technique outperformed meditation; cyclic sighing stood out for its superior impact on mood improvement (statistically significant at P<0.05) and on reducing breathing frequency (also P<0.05).

Execute the exercise by inhaling once through the nose, briefly adding a second inhale to maximize lung expansion, then exhale gently and fully through the mouth for a full 5 minutes. Although this trial was conducted at home, relied on participant self‑assessment, and involved a modest sample size, its benefits are clear: it costs nothing, takes only five minutes, can be done anywhere, and offers modest but tangible advantages over standard mindfulness practice.

Balban MY, Neri E, Kogon MM, et al. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 4(1), 100895. https://doi.org/10.1016/j.xcrm.2022.100895