What is Tidal Breath?

Tidal breath (TD) is normal breathing that occurs rhythmically and involuntarily. It is the process of inhaling and exhaling air during regular respiration. Tidal volume is the air breathed in and out during each breath in a resting state. Tidal breath is distinct from other types of breathing, such as forced or deep breathing, and it represents the natural and effortless respiratory activity that sustains life.