Decreasing in breathingfrequency could improve the particle deposition efficiencies. Nonethless, decreasing respiratory volume may enhance the particle deposition efficiency.
若是减少吸入的呼吸流量,微粒子在气管内的沈积效率也会随之增加。
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Another experiment demonstrated that physical exercise, which was sufficiently vigorous to double the rate of breathing, had no effect on the frequency of yawning.
Called MyCalmBeat, the app USES a heart rate monitor that attaches to the ear to detect a person's optimal breathing rate, or resonant frequency, which is unique to each person.